Although science cannot definitively answer this question, it does offer some insights. For example, neuroscience tells us that our thoughts, emotions, and perceptions arise from the physical activity of the brain. When the brain dies, these activities stop and we lose consciousness. This suggests that if there is a soul, it is probably related to the activity of the brain.

On the other hand, quantum mechanics and parallel universe theories also offer some interesting ideas. Some scientists suggest that our universe may be just one of many possible realities, and that when we die, our soul moves to a different universe. Yet again, these are purely speculative theories, not based on solid evidence.

Let's try to understand what is meant by soul. The word soul comes from the Latin anima, which is related to the Greek ànemos, meaning "breath" or "wind."

In many spiritual and religious traditions, the soul is the "essence", "spirit" or "self" of the person.

In more recent times, however, the soul is understood as a part of the thinking self, like the mind or consciousness, one of the greatest mysteries of the various branches of science.

A few years ago, a new theory was developed in collaboration with one of the greatest physicists of our time, which should shed light on this question.

The theory for exploring consciousness, and therefore the soul, is called "Orch-OR" (orchestrated objective reduction) and was developed in the 1990s by physicists Roger Penrose and Stuart Hameroff. The two physicists based their theory on the idea that consciousness arises in neurons, not through interactions between them.

However, it is worth mentioning that orchestrated objective reduction is currently only a theory, but is believed to be explorable.

At the core of the Orch-OR theory developed by Penrose and Hameroff is the idea that the brain may not be controlled by algorithms. This means that the physical properties of the brain are determined not by traditional mathematical formalities, but by the principles of quantum mechanics that can be described. According to it, consciousness is a result of the quantum gravity effect of the universe.

It is a program from the brain's quantum computer that can continue to operate even after death. This is the theory that explains the things people say they saw and experienced during clinical death.

At the heart of the theory is the belief that our soul is found in structures called microtubules, which in turn are found in brain cells. To put it simply, according to the theory, our soul interacts with the neurons in the brain and is made up of the tissues of the universe itself.