This book traces the shadowy tradition of "holy madness/crazy wisdom" from the Holy Fools of early Christianity, through the great adepts of India and Tibet, up to the controversial gurus of today. In our day, when even the Dalai Lama has warned Western seekers to choose their teachers carefully, Feuerstein provides an intelligent and cautionary guidebook to the guru-disciple relationship, plus a comprehensive analysis of the principles of authentic spirituality.