The soul cannot be scientifically proven. That should not cause alarm for Christians. There are lots of things that cannot be scientifically proven, either because science has not gotten there yet or because science is not the right tool with which to explore that particular question. Science can tell me who my biological mother is but it cannot prove that she loves me. It can determine whether or not a person’s DNA was left at a crime scene, but it cannot determine whether or not he should be held accountable for committing a crime.
Nonetheless, for many people who have been heavily influenced by materialism–the philosophical conviction that matter and physical processes are all that there is–the lack of a testable hypothesis about the soul means that the soul must be an illusion. As neuroscience continues to advance, more and more research has shown that, physically speaking, we are our brains. All our memories are stored in the brain. All our feelings are generated by the brain. When we feel pain in our hands or feet, there is no actual pain there. Rather, our brain is interpreting reactions in our nerve endings as pain. Many scientists now believe that all that we call consciousness takes place in the brain and that it will not be long before we figure out just how the whole trick of it works.
The NPR program Intelligence Squared hosted a debate in 2014 on the question of whether or not there is life after death. Debaters on both sides were scientists, but those on the pro side argued largely from personal and anecdotal evidence of near death experiences. Those on the con side focused instead on the question of consciousness. They likened death to a candle being blown out. The matter and energy still exist, but the process is done. The flame was never really its own thing, but an illusion of perception. Likewise, what we think of as us is merely a set of complex chemical processes taking place in our brains. Everything about us from our sense of humor to our experiences of love is reducible to the firing of neurons. Once that firing stops, there is nothing left of us to live on. The soul was never more than chemistry and therefore has nowhere to go when the chemistry is done. This argument handily won the debate.
The problem with this logic, of course, is that it assumes its own philosophical premise. The soul has to be a physical reality in order to be scientifically disproven in this way. If the soul is something different, something other than the stuff that makes up this world, then the tools of physics and biology might be able to catch glimpses of it but they would never be able to reduce it to a formula. The proponents of near death experiences sometimes do try to subject those experiences to scientific rigor, as they should, but the kind of scientific questions that can be asked about such experiences will not yield the kind of answers that strict materialists are ever likely to accept.
The Bible speaks of the soul in multiple ways. Sometimes the soul is simply a synonym for life itself, as when Jesus says “Greater love hath no man than this, that he lay down his life for his friends” (John 15:13). The soul is also sometimes spoken of as inclusive of our whole being, including our bodies, such as when Jesus says, “What does it profit a man to gain the whole world and lose his soul?” (Matthew 16:26). Elsewhere, however, the soul is clearly a separate faculty altogether, as when He says, “Do not fear those who kill the body but are unable to kill the soul; but rather fear him who is able to destroy both soul and body in hell” (Matthew 10:26).
If all this seems confusing, it should. When we speak of the soul, we are delving into a mystery. It is hard to speak of spiritual reality when we spend all our time in a world that has been scrubbed clean of it. To a materialist, appealing to spiritual reality will always sound like special pleading because it requires us to look at the world through a different lens than that of a microscope. It requires the same knowing that allows me to accept that my mother’s love for me is not merely a chemical reaction in her brain or that the “me” I am in my mid thirties is the same “me” that I was when I was only four or five years old, despite the fact that everything about me has changed during the time in between including the entire set of atoms and molecules that make up my physical body.
Yet it would be incorrect to say that we have no evidence at all of the soul besides the purely subjective experiences of religious people. Throughout the Intelligence Squared debate, I kept asking myself how I would have argued the question if I had been on the pro side. What I would have said would have been something like this: The first, last, and best piece of solid evidence for the existence of the human soul is the resurrection of Jesus Christ.
Of course, that probably would have made further conversation impossible, at least from the materialist point of view. It is unfair, they might say, to try to buttress one religious idea by means of another. We have to stick to facts after all, not faith. But the resurrection of Jesus is knowable, not through scientific testing, but certainly through the social sciences and the study of history. We can test the veracity of the resurrection the same way we test the veracity of the reign of Julius Caesar or the existence of Socrates or any of hundreds of other important historical events that happened in the ancient past. We look at the best evidence we have and draw likely conclusions based on that evidence, just like we do in a court of law. When we look at the evidence that way, the case for the historical veracity of the resurrection of Jesus is overwhelming. Do not take my word for it. There are plenty of good studies that have been done on the subject, the best in modern times probably being N.T. Wright’s The Resurrection of the Son of God.
Whatever the outcome, though, it has to be clear that the resurrection has a strong bearing on the questions of life after death and the true nature of the soul. If the resurrection is a fraud, then the materialist view may happily stand. But if it is true, then the reality of life beyond death for at least one of us has to be admitted and the rest of what Jesus claimed about Himself and about us, including what He had to say about the soul, becomes admissible as evidence. Near death experiences can be quite powerful and should not blithely be dismissed, but an actual death and return experience really ought to be decisive.
Naturally, I do not expect that argument to convince the staunch materialist. We simply live in different worlds. The world of the materialist is rational to a fault but dead even before it begins. It is a world where human beings lack not only a soul but also true freedom, the ability to love, the wonder of great art and music, the transcendence that comes from awe at creation, the intimacy of prayer. Not that a materialist cannot have some of these experiences, but they are reduced and diminished by not having access to their spiritual foundation.
We are not our brains. We are our souls. Neither the soul nor the body are in competition with each other. The theory of the soul does not require an incomprehensible brain for it to work. Each new discovery of neuroscience, far from being a challenge to the supernatural, is a wonderful and even awe inspiring glimpse into the way that God has put us together. The world is enchanted. The brain makes the body dance, but the soul makes the brain know that its natural end is the eternal dance of life with God.
Image by Allan Ajifo and made available through Wikimedia Commons.