This is the most powerful book I have ever read. I have read it cover to cover at least 5 times since its first publication and find each time that it sheds new light and wisdom upon the deepest mysteries of Self Realization. It is a book to be read slowly, to be pondered, to study and to ingest on the deepest level. In my view, this is Yogananda’s greatest work. It is more than a book, it is a transformative experience at the feet of a very great master.