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Is Reincarnation Real? Here’s What Science and Religion Say

Reincarnation, a concept as ancient as human thought, is the belief that our souls or consciousness are reborn into new bodies after death, journeying through numerous lives in a cyclical process of death and rebirth.

Rooted in many religious traditions, from Hinduism and Buddhism to certain indigenous cultures, it offers perspectives on life’s purpose, karma, and the immortal nature of the soul.

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The idea of reincarnation is primarily a spiritual or religious belief and falls outside the realm of empirical science, which deals with observable phenomena and testable predictions. But even so, there are many cases where people, especially children, have described past lives.

Let’s take a closer look at the Eastern and Western perspectives of reincarnation, and what the science says.

Reincarnation in the East

While reincarnation might seem like a strange and even unusual belief in the western world, it has existed for thousands of years in the East. In fact, it’s so much a part of everyday life in countries like Sri Lanka, India, and Nepal and others.

Stories of reincarnation abound in these countries to the point where it seems almost every family has a reincarnation story. Some people take extra care not to kill insects and bugs in case they pay for it in their next life. Past lives and future lives are common terms here.

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It’s no wonder that the concept of reincarnation exists here, because after all the concept is embedded in many of the eastern religions.


People worshipping to the Ganesha statue

The oldest religious texts of Hinduism, the Vedas, hint at the idea of a cycle of life, death, and rebirth. However, it is in the Upanishads, later philosophical texts, that the concept of reincarnation becomes more explicit.

In the context of Hindu philosophy, reincarnation is closely tied to the law of karma, where the actions of an individual in their lifetime determine the circumstances of their next life.


Buddhist monks standing outdoor

In Buddhism, the idea is slightly different and is often referred to as ‘rebirth’ rather than ‘reincarnation’ as there is no permanent soul or self to be reincarnated. The Buddhist doctrine of Anatta or Anātman suggests a continuous process of rebirth that is dependent on one’s actions or karma, but not a fixed, unchanging ‘self’ being reborn.



Jainism, another ancient Indian religion, also incorporates a belief in reincarnation. In Jain philosophy, every living being has a soul which is potentially divine, and the goal is to realize this divinity by shedding accumulated karma through ethical living and spiritual practices. The soul then continues to be reborn until it achieves liberation (moksha) from the cycle.

Reincarnation in the West

It’s worth noting that while reincarnation is typically associated with Eastern philosophies, ideas resembling reincarnation have also appeared in Western traditions. For instance, certain sects of Gnosticism, Pythagoreanism, and even early Christianity entertained the notion of the soul’s return.

However, these views were typically considered heretical in the context of mainstream Western religious thought, which tends to emphasize linear, rather than cyclical, views of life, death, and the afterlife.

The Abrahamic religions, which are Judaism, Christianity, and Islam don’t hold reincarnation as a central tenet in their beliefs. They believe that time is linear and each soul has a singular and unique existence.


People in Church during Ceremony

In Christianity, the doctrine of resurrection is predominant, in which it is believed that after death, believers will be resurrected at the end of times. This belief is different from reincarnation, as it doesn’t involve a cycle of birth, death, and rebirth but a one-time resurrection of the body.


Women in Hijab Kneeling on Carpeted Floor Praying

Similarly, in Islam, the focus is on the belief in a Day of Judgment and resurrection. The individual soul is judged according to its deeds in life, and then either rewarded in paradise or punished in hell. This is a linear perception of life, death, and the afterlife.


Judaism ceremony

In Judaism, beliefs about the afterlife can vary significantly among different groups. While reincarnation is not a mainstream Jewish belief, it is a part of some Jewish mystical traditions, particularly within Kabbalah and some Hasidic sects.

What Does the Science Say About Reincarnation?

While reincarnation isn’t taken seriously in scientific contexts by many, a few scientists have been studying the phenomenon for a while. These include Ian Stevenson and Jim Tucker, who have devoted their scientific inquiry to investigate children’s memories of their past lives.

Dr. Ian Stevenson, a psychiatrist at the University of Virginia, and his successor, Dr. Jim Tucker, have documented thousands of cases in which young children reported memories that they claim are from past lives. These researchers approach their work with rigorous scientific methods, and in some cases, they have been able to find a deceased person whose life matches the details given by the child.

The Case of James Leininger

James Richard Leininger rebirth
The reincarnation of a World War II fighter pilot. Source.

One of the most popular cases that they studied was that of James Leininger. When he was only two years old, James Leininger became very interested in planes. But what started out as a natural interest soon became quite sinister. James would wake up screaming at night with vivid nightmares of flying over the ocean, only to be shot down by enemy fire.

These dreams were about a World War II fighter pilot named James Huston Jr., who was killed in action over the Pacific Ocean. He would give his parents detailed accounts of a World War II fighter pilot’s life, details that a young child of four wouldn’t typically know.

They started to do some research and were shocked to find that there really was a pilot named James Huston who died just as their son described 50 years ago in Japan during World War 2. The case of James Leininger garnered a lot of interest, and many, including his parents, saw it as a case of reincarnation.

Pushback in the Scientific Community

Stevenson and Tucker have made reincarnation a subject of study and have painstakingly documented frankly chilling cases of children who have vivid memories of another life.

But these studies, while intriguing, do not constitute scientific proof of reincarnation. And so, reincarnation, despite lots of seeming evidence, remains sidelined.

Skeptics argue that there could be other explanations for these phenomena, including fraud, fantasy, or information the children have unconsciously picked up from their surroundings.

These have caused lively debate, and academic sparring through published journal articles. Take the following quote, for example, which comes from the conclusion of Tucker’s rebuttal to a critic’s analysis of the James Leininger case.

“Nonetheless, his paper, in its own strange way, represents a significant contribution. Sudduth has demonstrated that the case is so strong that a determined critic can devote endless time and energy trying to debunk it and still not make a dent in it. His accomplishment is marred only by his inability to see what he has done.”

The idea of reincarnation challenges many fundamental concepts in neuroscience and biology. For instance, it’s not clear how memories could be transferred from one life to another after the death and decomposition of the brain, which is currently understood to be the organ responsible for memory.

Wrapping Up

Reincarnation as a concept poses significant philosophical and practical questions that are yet to be resolved. However, as our understanding of consciousness, memory, and life itself continues to evolve, our perspective on such topics may also change. Until then, reincarnation remains a topic of personal belief and philosophical debate rather than established scientific fact.

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Affiliate Disclosures

Dani Rhys
Dani Rhys

Dani Rhys has worked as a writer and editor for over 15 years. She holds a Masters degree in Linguistics and Education, and has also studied Political Science, Ancient History and Literature. She has a wide range of interests ranging from ancient cultures and mythology to Harry Potter and gardening. She works as the chief editor of Symbol Sage but also takes the time to write on topics that interest her.