This book helps you to distinguish depression from similar looking, but fundamentally different, mental states such as guilt, sloth, the darkness of sin, and the sublime desolation called "dark night of the soul" that is, in fact, a privileged spiritual trial sent as a special gift from God. You'll come to know how to identify the various types of depression and come to understand the interplay of their often manifold causes, biological, psychological, behavioral, cultural, and moral.