Faith is the desire to believe in something as true, or, if not absolutely true, then at least dependable. Faith seems to have been promoted through evolutionary trends, and, as such, it is a concoction of deep brain processes. Related to faith is the concept of truth. Truth is an ephemeral mental construct. We each have some idea of the meaning of truth. Most of the time, our ideas of truth reduce to what we are willing to believe through faith. Truth, in other words, can come from the words of our parents, instructors in our schools, or the teachings of our pastors. Truth can come from books on science or religion. These are different truths, to be sure, but they form the foundations of our essential selves.