You know about „the Autobiography of a Yogi“? It is among the best books in the world and was written by Paramahansa Yogananda. There are very successful people, allegedly Steve Jobs, who read this book once a year. Divine light shines out of every sentence of this book by this enlightened master born in India in 1893. He is one of the Yogis who brought Yoga to the western world in the beginning of the 20th century.