Tag Archives: Afterlife

Is Your Brain a Quantum Computer? (A Scientific Explanation for the Soul and Afterlife)

This week’s parasha, Chayei Sarah, begins with the passing of the matriarch Sarah. The Torah states that “the lives of Sarah were one hundred years, and twenty years, and seven years…” Traditionally, two big questions were asked of this verse: the first is why the Torah describes her life as one hundred, twenty, and seven years instead of simply saying that she was 127 years old when she died. The second is why the Torah says these were the lives of Sarah, instead of life in the singular, especially in light of the fact that the parasha actually describes her death, not life!

The classic answer to the first question is that Sarah was as beautiful at 100 as she was at 20, and she was as pure at 20 as she was at 7 years old. The answer to the second question, as we’ve explored in the past, is that Sarah (or a part of her soul) was immediately reincarnated in Rebecca, and thus Sarah’s life and life’s work continued with her future daughter-in-law. In general, the word for “life” in Hebrew is in plural, chaim, which alludes to the fact that there are really two lives: the transient life in this current physical world, and the everlasting life of the soul.

Today, many question (or outright reject) the possibility of an afterlife. Such people argue that there is no evidence or scientifically plausible explanation for such things. When the body dies, the person dies with it, and that’s it. In reality, there is a great deal of evidence to support the notion of a soul and an afterlife, and even one solid scientific explanation that is slowly gaining popularity and acceptance.

The Quantum Brain

Although there have been millions of cases of “near death experiences” and medically-induced “clinical deaths”—many of which end with the victim or patient describing other worlds and relating accurate information that would have been impossible for them to know—these are all relegated to “anecdotal evidence” and generally not taken seriously in the scientific community. We can put all of that aside (together with countless people’s personal stories of prophetic dreams and premonitions, “out-of-body” experiences, miraculous occurrences, and other inexplicable phenomena), and focus strictly on accepted science.

In recent decades, neurologists studying the human brain have sought to uncover what it is that generates consciousness and actually makes the brain work. Why and how is it that this network of cells produces a “mind”? Biology and chemistry have given us the general mechanisms of electrical signals and neurotransmitters, but have not been able to answer the real fundamental questions. To solve the mystery actually requires the most complex of sciences: quantum physics.

In 1989, world-renowned physicist Sir Roger Penrose published The Emperor’s New Mind in which he argued that classical physics simply cannot explain consciousness, nor can the brain be compared in any way to a typical computer, or be explained with familiar algorithms. Penrose suggested that the only plausible explanation for consciousness can come from quantum physics.

To go into the major principles of quantum physics is far beyond our scope. Indeed, one of the great quantum physicists, Richard Feynman, once noted: “I think I can safely say that nobody understands quantum mechanics.” Suffice it to say that quantum physics has completely revolutionized science and our entire understanding of reality. It has turned the universe into a funky place where just about anything is possible, and where things at the sub-atomic level behave in totally bizarre ways. Niels Bohr, one of the early quantum physicists (and a Nobel Prize winner) offered that “If quantum mechanics hasn’t profoundly shocked you, you haven’t understood it yet.” Meanwhile, the man who is often called “the father of quantum physics”, Max Planck, stated:

As a man who has devoted his whole life to the most clear headed science, to the study of matter, I can tell you as a result of my research about atoms this much: There is no matter as such. All matter originates and exists only by virtue of a force which brings the particle of an atom to vibration and holds this most minute solar system of the atom together. We must assume behind this force the existence of a conscious and intelligent mind. This mind is the matrix of all matter.

From his lifetime of studies, Planck concluded that reality as we know it doesn’t exist, and all of matter is held together by some kind of universal mind or consciousness. Building on these ideas, and the complex math and science behind them, Penrose proposed that the brain is a “quantum computer” of sorts, and may be intricately linked to the very fabric of the universe.

Quantum Biology and the Soul

Penrose’s hypothesis inspired a psychology professor in Arizona named Stuart Hameroff. As a practicing anesthesiologist, Hameroff knew that anesthesia works by shutting down small proteins inside neurons called microtubules, and this shuts off a person’s consciousness. Penrose and Hameroff teamed up to continue researching the possibility of the brain as quantum computer. Incredibly, their conclusions suggest that the brain can actually store its quantum information in the universe itself, so that even if the brain was to die, its information would not die with it. That information can be held indefinitely in the universe, and can return to a revived brain, or even into another brain. This would explain near death experiences and clinical deaths, and provides a scientific explanation for reincarnation and a life after death. The death of the body does not at all mean the death of the person, or that person’s memories and thoughts.

While there are those who are quick to criticize the theory and reject it, no one has been able to actually refute it. In fact, since the theory was first proposed, more and more evidence has accumulated to support it. In 2014, quantum biologist Anirban Bandyopadhyay (based in Japan’s National Institute for Materials Science and a visiting professor at MIT) successfully demonstrated the quantum activity of microtubules.

It appears that science has finally discovered the soul. There are now valid, empirical evidence-based theories to explain the existence of an eternal mind or spirit, a universal consciousness, the possibility of an afterlife and reincarnation. The scientific community needs to stop aggressively denying anything that seems “spiritual”, and instead delve deeper into this exciting and promising new field. This sentiment was already expressed long ago by Nikola Tesla, considered by many to be the greatest scientist of all time: “The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence.” It was the genius Tesla who first noted that his brain “is only a receiver,” and stated that “In the Universe there is a core from which we obtain knowledge, strength, inspiration. I have not penetrated into the secrets of this core, but I know it exists.”

Space Travel in the World to Come?

Kohanim stoking flames upon the altar in the Temple (Courtesy: Temple Institute)

This week’s Torah portion is Tzav, which begins by describing the procedure of the olah, the “burnt-sacrifice”. The Zohar comments on the first verse of the parasha by saying that the word olah, literally “rising”, hints to various “evil thoughts” that may arise in a person’s head. Like the burnt-sacrifice, the Zohar teaches that such thoughts should immediately be burned away from one’s mind. Where the Torah says that the olah must be left burning upon the sacrificial altar all night long, the Zohar says that this hints to the cosmic nahar dinur, the River of Fire, which purifies souls of all evil.

The term nahar dinur appears in many places across Jewish texts, from the Tanakh to the Talmud and Midrash. What is this “River of Fire”? Where does it come from, and what is its real purpose?

Daniel’s Vision

Daniel’s “Vision of the Four Beasts” by Gustave Doré

The earliest mention of the River of Fire is in the Book of Daniel. While in Babylon (during the Jewish exile), Daniel describes his Heavenly vision, starting with the ascent of great beasts out of the sea, including a winged lion and a four-headed leopard. He then witnesses the Merkavah, God’s “Chariot”, with a Throne of “fiery flames, and wheels of burning fire” (Daniel 7:9). It is then that Daniel sees a nahar dinur: “A river of fire issued and came forth from before Him; with thousands upon thousands ministering unto Him, and ten thousand upon ten thousand standing before him.”

The Talmud (Chagigah 14a) explains that “Every day ministering angels are created from the fiery stream, and utter song, and cease to be.” The River of Fire gives birth to countless angels who praise God and are immediately extinguished after doing so. Earlier, the Talmud tells us that this river comes from the “sweat of the chayot” and pours forth upon “the heads of the wicked in Gehinnom”. The chayot are a higher class of angels, much greater than those myriad ministering angels that exist only momentarily to praise God. The chayot are the source of the River, which flows all the way down to Gehinnom.

Of course, the purpose of Gehinnom is to purify souls of the wickedness which they accumulate in this world. The Zohar (III, 27a) concludes that the River of Fire is the method of purification, burning away those evil impurities. Fittingly, it is the very sweat of the angels doing God’s holy work that generates the River and cleanses evil.

The Milky Way Galaxy

The Milky Way, as visible from the Earth

The Zohar connects the River of Fire with the olah offering which burned throughout the night. This is not coincidental. In another Talmudic passage (Berakhot 58b), we are told that the nahar dinur is visible in the night’s sky. Here, the rabbis are discussing various astronomical constellations, including Orion, Pleiades, and Ursa Major. We are then told that the “tail” of the constellation Scorpio is in the middle of nahar dinur!

This suggests that the “River of Fire” is actually the arm of the Milky Way galaxy which is visible in the night’s sky. The tail of Scorpio is indeed right in the middle of it. The Talmud says that were it not for this fact, no one would ever be able to survive the sting of a scorpion. We are then told that God brought about the Great Flood by using two stars from Pleiades, and He took away the Flood by using two stars from Ursa Major.

Close-Up of the Scorpio Constellation and the Milky Way

These are just a few examples highlighting the tremendous influence attributed to the stars and celestial objects. Often, these luminaries are described in the same terms as the angels themselves. This may be why Daniel described the River of Fire as being surrounded by countless angels, just as the Milky Way is filled with countless stars.

Psalms 147:4 tells us that God “counts the number of stars, and gives them all names.” Meanwhile, the Talmud (Chagigah 14a) teaches that from “every utterance that goes forth from the mouth of the Holy One, blessed be He, an angel is created.” Incredibly, Rabbi Aryeh Kaplan points out that the maximum number of possible “utterances” in Hebrew (ie. permutations of the Hebrew alphabet) is 1021, equal to the estimated number of stars in the universe!

Location of our sun in the spiral Milky Way galaxy

Rewards for the Righteous

Last week, we wrote about the various camps of angels, and how they are likened to military divisions. The stars, too, are described in the same fashion (Berakhot 32b):

… twelve [major] constellations have I created in the firmament, and for each constellation I have created thirty hosts, and for each host I have created thirty legions, and for each legion I have created thirty cohorts, and for each cohort I have created thirty maniples, and for each maniple I have created thirty camps, and to each camp I have attached three hundred and sixty-five thousands of ten-thousands of stars, corresponding to the days of the solar year, and all of them I have created only for your sake.

Multiplying these values again produces 1021 stars (or 1018, depending on how the last sentence is read). This passage ends with God affirming that He created this vast universe just for us. If we take the stars to symbolize angels, this means that all the angels were created for us, to better our lives in some way. We can also take the words more literally:

Why would God create such a mind-bogglingly immense universe? (As far as we can tell, the universe is 93 billion light years wide. This means that if one were to fly at the speed of light—that’s 300,000 kilometres per second—it would take 93 billion years to go from one end of the universe to the other!) What need is there for so much space? What need is there for so many stars—most of which we cannot even see from Earth—not to mention all the countless planets orbiting those distant stars, along with comets, asteroids, and other objects? This vastness makes Earth, and all the living things upon it, seem totally insignificant.

Yet, God reminds us that He created it all for us. The last Mishnah in the tractate Uktzin states that each righteous person in the World to Come will receive 310 worlds as a reward. Traditionally, these were seen as spiritual worlds. Today, however, with space travel technology developing at an ever-faster pace, it isn’t hard to envision how each tzaddik might enjoy 310 planets of his own somewhere in the great, wondrous vastness of outer space. With 1021 stars in the universe, there is certainly no shortage of worlds out there.

Olam HaBa?

Everything You Wanted to Know About Reincarnation in Judaism

This week’s Torah portion is Mishpatim, which is concerned with the first major set of laws that the Israelites received following the Ten Commandments. While the term mishpatim literally means “ordinances” or “judgements”, the Zohar (II, 94a) suggests a very different interpretation:

‘And these are the judgements which you shall set before them…’ These are the rules concerning reincarnation, the judgement of souls that are sentenced according to their acts.

The Zohar goes on to interpret the laws in the Torah with regards to the mechanisms of reincarnation. For example, whereas the Torah begins by describing a Hebrew servant who is indentured for six years of labour and must then be freed in the seventh year, the Zohar interprets that this is really speaking of souls which must reincarnate in order to repair the six middot before they could be freed. (The middot are the primary character traits: chessed, kindness; gevurah, restraint; tiferet, balance and truth; netzach, persistence and faith; hod, gratitude and humility; and yesod, sexual purity.)

While the Zohar speaks at length about reincarnation, it is the Arizal who systematically laid down the rules of reincarnation and explained the Zohar in depth. His primary disciple, Rabbi Chaim Vital, recorded these teachings in a famous treatise known as Sha’ar HaGilgulim, “Gate of Reincarnation”. The following is a brief condensation of the basic rules of reincarnation that are defined in this tremendous text, answering many of the common questions people have about spiritual transmigration.

Why Do People Reincarnate?

At the start of the eighth chapter, Rabbi Vital writes:

למה מתגלגלים. דע, כי הנשמות יתגלגלו לכמה סבות, הראשונה הוא, לפי שעבר על איזו עבירה מעבירות שבתורה, ובא לתקן. הב’ הוא, לתקן איזו מצוה שחסר ממנו. השלישית היא, שבא לצורך אחרים, להדריכם ולתקנם… לפעמים יתגלגל, ליקח את בת זוגו, כי לא זכה בראשונה לקחתה

Why do people reincarnate? Know that souls reincarnate for several reasons: The first is that one transgressed one of the prohibitions in the Torah, and returns to repair it. The second is to fulfil a mitzvah that one lacks. The third is in order to assist others, to guide them, and rectify them… Sometimes one reincarnates to marry their soulmate, which they did not merit to do in a previous life.

The Ari explains that people mainly reincarnate in order to atone for sins of past lives, or to fulfil mitzvahs that they didn’t do previously. Later, in Chapter 16, we read that people who return do not have to fulfil all the mitzvahs in one lifetime, but only have to accomplish those that their souls are still lacking. Some reincarnate not for their own rectification, but to assist others. We are told elsewhere that these are usually very righteous individuals who agree to return to this world in order to help others.

Fresco of the Resurrection of the Dead from the ancient Dura-Europos Synagogue

Some also reincarnate because they either did not marry, or married the wrong person. They must return to reunite with their true soulmate. The Arizal teaches that, unfortunately, some people are so deeply mired in kelipot, negative spiritual “husks”, that they are unable to find their soulmate in this world. These people will reunite with their other half only in Olam HaBa, the “next world” at the time of the Resurrection. With regards to finding soulmates, this is directed particularly at male souls, for it is primarily a man’s responsibility to find his soulmate.

On that note, the following chapter tells us that female souls actually reincarnate very rarely. To begin with, female souls are more refined than male ones, and are unlikely to require more rectifications. What does happen more commonly is that male souls are reincarnated into female bodies! This opens up a number of fascinating scenarios which Rabbi Chaim Vital describes.

What Do People Reincarnate Into?

In Chapter 22, we read that people can reincarnate not only into human bodies, but also animals, vegetation, and even inanimate matter. For example, a person who feeds others non-kosher food reincarnates as a tree; one who sheds blood reincarnates into water; those who transgress various sexual prohibitions reincarnate into bats, rabbits, and other animals; while proud people and those who talk too much reincarnate into bees. (We are told that this is what happened to the judge Deborah who, despite her greatness and wisdom, had a bit of pride and was required to reincarnate into a bee, hence her name devorah, which literally means “bee”!)

It is important to mention, though, that an entire human soul does not fully reincarnate into another organism. Rather, souls are complex entities made up of many different interacting sparks. It is only those sparks that require rectification that return to this world (Chapter 14). Interestingly, the Arizal teaches that when two people really dislike each other, and are constantly in conflict with one another, this is often because the two are sharing sparks from one soul!

How Many Times May One Reincarnate?

Sha’ar HaGilgulim records that a person can reincarnate thousands of times—but only on the condition that they improve at least a little bit in each incarnation. If they fail to improve, they can only reincarnate a maximum of three times. After three strikes, that particular spark is sent to Gehinnom (loosely translated as “hell”) where it will be purified. However, the souls of those who regularly learn Torah are never sent to Gehinnom, and always merit reincarnation. This is one of the incredible protective powers of regular Torah study.

In multiple places, the Arizal teaches about the reincarnations of Abel, the son of Adam. Abel (הבל) had a good side and a bad one. The good side was represented by the letter Hei (ה) of his name, and the bad by the Beit and Lamed (בל). The bad part needed to be rectified, so it reincarnated in Laban (לבן), the wicked father-in-law of Jacob. Laban didn’t do much better, so he was reincarnated in the gentile prophet Bilaam (בלעם). He, too, was an ungodly person, so the Beit-Lamed soul was reincarnated for the third time in Naval (נבל), the ungrateful man who rejected David. Naval was strike three, and that Beit-Lamed soul no longer returned in a reincarnation.

We see from the above how a person’s name may offer tremendous hints as to their soul sparks, previous lives, tests, challenges, and character traits. When we read about the above individuals in the Tanakh, we see how similar they were. All three were very wealthy, famous, and participated in divination and sorcery. All were cunning, greedy, and deceitful individuals. The Arizal explains in detail what rectifications each was supposed to do, and how one life affected the next, weaving together these three seemingly unrelated Biblical narratives that span nearly a thousand years into one beautiful tapestry.

Which Body Will A Person Have at the End?

Perhaps the most famous question: if a soul has so many different bodies over so many different lifetimes, which body will that soul inhabit in the afterlife, or in the world of Resurrection? Rabbi Vital writes:

וכן הענין בכל נשמה ונשמה, וכאשר יהיה זמן התחיה, כל גוף וגוף יקח חלקו של נשמתו, כפי חלק הזמן שלו באיזו מדרגה היתה

And with each and every soul, when the time of the Resurrection comes, each and every body will take its corresponding soul, according to the part that it had at that particular time.

Thus, each part of the soul will have its own body, and all reincarnations will exist simultaneously as individuals in Olam HaBa!

Breaking Free from Materialism

In Chapter 23, Rabbi Vital suggests that the most important thing to take from all of this is to live a meaningful, spiritual life. When a person is mired in materialism, and cares only for their physical aspects, they become so attached to their bodies that they cannot exist without one. And so, when that person’s body dies their soul is in complete disarray; frightened, pained, and unable to ascend onwards. Angels must come and quickly place the soul in a new body. As such, this person can never free themselves from endless reincarnations into this imperfect, difficult world.

However, those who in their lifetimes tap into their souls, and are comfortable with their spiritual side, are able to simply take off their dead bodies like an old garment, and move on. For such people, their wonderful portion in Olam HaBa is not too far away.

An Honest Look at Death and the Afterlife

This week we once again read a double Torah portion, combining the parashot of Behar and Bechukotai to complete the book of Leviticus. The main themes of these parashas are the Sabbatical and Jubilee years, as well as God’s rewards and punishments for those who follow His ways and those who do not.

One interesting thing that the reader will note is that there is no mention of any kind of afterlife. All of the rewards and punishments that are listed are described in wholly physical terms: ample rains and abundant harvests, military victories and secure borders, good food and the feeling of God’s presence – and the opposite of these if the people are sinful. Why is it that the Torah does not mention any kind of reward and punishment in the afterlife? After all, we are accustomed to hearing that this world is nothing but a transient “hallway”, so to speak, while the next world is the real deal, where people receive what they deserve.

More puzzling is the fact that the Torah essentially never mentions the afterlife in explicit fashion. Everything appears to happen in this physical world. Yet, there is certainly a discussion of souls, and many spiritual entities. So, what is the real Torah conception of the afterlife?

The Garden of Eden

'Garden of Eden', by Thomas Cole

‘Garden of Eden’, by Thomas Cole

Typically, it is common to think that those who have passed away are now in the “Garden of Eden”, and this is indeed how Hebrew-speakers often refer to the dead, wishing them menucha (rest) in Gan Eden. But where exactly is this “Gan Eden”?

The Torah is quite clear on the fact that God created the Garden of Eden right here on Earth. The Genesis account describes God’s creation of the world, and all of its inhabitants, and concludes with the planting of a garden in Eden, where the first man and woman are placed. After their sin of consuming the fruit, Adam and Eve are banished from the Garden, and continue their lives elsewhere on Earth. There is no mention anywhere in the Torah of a spiritual Garden of Eden located somewhere in the Heavens!


Conversely, it is common for people to refer to an afterlife of damnation in a place called Gehinnom, typically translated as “hell”. Again, there is no explicit mention of a “hell” in Scripture. Gehinnom itself simply means “the Valley of Hinnom” (or the Valley of the Son of Hinnom, Gei Ben Hinnom) which is discussed in the Tanakh as a place right outside the Old City walls of Jerusalem. This is described as a place of sinners and idolaters, outcasts that were expelled from the Holy City. Once again, we see that the place usually thought of as hell is simply a physical place here on Earth.

As Above, So Below

By the times of the Talmudic period, the Jewish Sages had developed a unique cosmic worldview. They saw this material world as only a reflection of the spiritual world. What happened down here reflected, in some way, much greater cosmic events that were happening in the Heavens. Thus, just as there was a Jerusalem down here on Earth, there was a Jerusalem shel ma’alah, a “Jerusalem Above” (see, for example, Ta’anit 5a).

Similarly, just as there was a Garden of Eden – a place of utmost peace and pleasure – here on Earth, there must be a similar one above in the Heavens. And just as there was a Gehinnom – a deep valley of evil – here on Earth, there must be such a place in the Heavens, too.

It appears that the idea of righteous souls moving on to a Heavenly Gan Eden, or wicked souls to a Heavenly Gehinnom, came from this view on the nature of God’s universe.

The Big Afterlife Problem

However, this brings about a very large problem: both the Garden of Eden and Gehinnom are described in physical terms. But, after the body dies and decays, only the soul lives on, and how can the soul experience physical pleasures or pains? Additionally, the soul is described as pure and eternal. Why is it the soul that must suffer for the sins accrued by the body? And why should the soul suffer infinitely for a body that had only such a short, finite existence?

This problem was presented to Rabbi Yehuda haNasi by the Roman Emperor Antoninus nearly two millennia ago (Sanhedrin 91a-b). Rabbi Yehuda replied with a wonderful parable, and concluded that God brings the body and soul together again, and only then judges the person, and bestows upon them their due rewards or punishments.

So, if the body and soul go back together again after death, then there is no “Garden of Eden” or “Gehinnom” in the sense that we might commonly think.

Gate of Reincarnations

The only way that the body and soul can go back together again is if, following death, the soul returns into bodily form. This is the definition of reincarnation. Roughly 500 years ago, the great kabbalist Rabbi Isaac Luria, better known as the Arizal, revealed many secrets of reincarnation, and these teachings were recorded by his primary disciple, Rabbi Chaim Vital, in a text called Sha’ar HaGilgulim (Gate of Reincarnations).

This text describes reincarnations in great detail, and affirms that those who have lived sinful lives are reincarnated into new lives that are very challenging, and in this way have to make reparations for the mistakes of their past. The righteous, too, are reincarnated, since no one goes through life without making some mistakes, and even the most minute of these errors must be repaired. However, such people will enjoy much better lives, and be given the opportunity to fix those minor details from their past.

Of course, proper repentance can nullify any trials that a person must bear due to a mishap from a past life. Thus, free will ultimately trumps everything else. And what happens to those who have completely fulfilled their missions? In that case, there is indeed a “Garden of Eden” of sorts.

Resurrection of the Dead

One form of afterlife that Scriptures do mention explicitly is the Resurrection of the Dead. It is taught that sometime after the coming of Mashiach, all of the righteous souls will miraculously come back to life. They will then enjoy the world as it was always meant to be: a Garden of Eden.

Ultimately, this is the role of Mashiach: to return the world to that perfect, primordial state. It is interesting to note how the figure responsible for driving mankind out of the Garden was the Serpent, Nachash (נחש) in Hebrew, a word which has a numerical value of 358; and the figure responsible for returning mankind to the Garden is Mashiach (משיח), a word which also has a gematria of 358 – measure for measure.

Thus, the final step for each soul, once its mission is complete, is to be resurrected in the restored Garden of Eden, right here in a new Earth, following the arrival of Mashiach.

Back to Bechukotai

We can now understand why Bechukotai does not speak of any spiritual rewards or punishments in an afterlife. All of the rewards and punishments are right here in this world, where body and soul unite as one, as Rabbi Yehuda told Antoninus. We can now also see why no “Heaven” or “Hell” is ever explicitly mentioned in Scripture, and why we never even mention them in our prayers. The Amidah prayer recited thrice daily makes no reference to souls in some Heavenly realm, but does have a blessing for techiyat ha’metim, the Resurrection of the Dead in a future, perfected world.

May we merit to see it speedily and in our days.