The book has its genesis in the fact that the author was intrigued by the way people earnestly took up the spiritual life.  He wondered if spiritual truths could be investigated by scientific techniques, if scientific truth could be found behind supra-normal experiences?

Such are some of the questions dealt with in this book. It is a scientific exploration of spiritual experiences. The author goes into neuroscience, psychology,  psychiatry, sleeping, dreaming, and near death experiences. This is an holistic approach to religious behavior and spiritual experience.