The central thesis of this article is that psychoanalysis is an organic offshoot of that evolutionary process called religion. As such it has more in common with the world's religions than it would care to admit. Nor would the world's religions feel particularly excited about admitting psychoanalysis in their midst, for its inclusion forces a rethinking of their place in human development. Using Keats's "Ode to a Nightingale," the author looks at the pain of human existence and how it has resulted in the concepts of soul, God, and immortality. The nature of sentience—being aware of one's awareness—is examined. The article asserts that psychoanalysis is the process by which the soul examines itself, thought examines thinking, and life examines its meaning. The author describes religion, soul theory, and psychoanalysis as having evolved naturally and necessarily from human existence and experience, and views them as necessary dimensions of existence.