Book excerpt: This book is a guide to discovering joy, the simple pleasure of living each day. I am a psychotherapist, with an office in New York City. As I work with patients and listen to their stories, I search for themes that define the human condition. These themes have melded into a philosophy centered upon living with joy. No book can substitute for the process of psychotherapy. But I hope these ideas will introduce you to the work of self-discovery at the heart of that experience.