By Stacy Trasancos, The Catholic Thing - This disregard for the human soul lies at the heart of many modern problems. The human person is biological, for sure. Enormous resources and ingenuity are poured into understanding, curing, and manipulating the body. The human brain is a powerful computer made up of neurological systems. But we are not just bodies. We are body and soul. The most sophisticated physics, chemistry, or biology can never explain the soul because the soul is spiritual. How do we understand the soul then?... To understand ourselves, we need God.