William James called his classic work, The Varieties of Religious Experience, 'a study in human nature'. For James, it is a fundamental feature of human nature that we have a conscious and a subconscious mind, and that the subconscious mind is deeply implicated in the religious life, especially in conversion and other experiences of spiritual enlightenment. In The Religious Life, Donald Capps addresses religious melancholy, the div ided self and discordant personality, religious conversion, thesaintly character, and the prayerful consciousness. He contrasts the cases of two clergymen - one deeply troubled, the other exemplary of the spiritual person. Aimed at general readers, Capps' work makes William James, a popular author in his own day, accessible to a modern audience.