This book is an invaluable book to possess for anyone who would like to develop themselves spiritually, have a wonderful life-changing experience, benefit in so many other ways, and would like to also be a practicing yogi. This book is of immense value especially to anyone who is a practitioner of a form of yoga. In this book there is not only a decent amount of information that pertains to spiritual matters, but also certain techniques that I have been practicing over the course of the last eight years. I feel that this book was well written and just about anyone who is of proper age should easily be able to comprehend the contents of it.