In my post http://www.manishsargam.com/2013/02/living-without-eating.html I had mentioned about the book "Autobiography of a Yogi" written by Shri Paramhansa Yogananda. The contents of the original edition of this book are available in .pdf form at http://files.manishsargam.com/Autobiography_of_a_Yogi_Original_1946_Edition.pdf. This eBook should be useful to a spiritual seeker or to someone facing questions like "Who am I?" or "What is the purpose of life?".