The value of Yogananda's Autobiography is greatly enhanced by the fact that it is one of the few books in English about the wise men of India which has been written, not by a journalist or foreigner, but by one of their own race and training in short, a book ABOUT yogis BY a yogi. As an eyewitness account of the extraordinary lives and powers of modern Hindu saints, the book has importance both timely and timeless. To its illustrious author, whom I have had the pleasure of knowing both in India and America, may every reader render due appreciation and gratitude. His unusual life-document is certainly one of the most revealing of the depths of the Hindu mind and heart, and of the spiritual wealth of India, ever to be published in the West.It has been my privilege to have met one of the sages whose life history is herein narrated Sri Yukteswar Giri. A likeness of the venerable saint appeared as part of the frontispiece of my Tibetan Yoga and Secret Doctrines (1). It was at Puri, in Orissa, on the Bay of Bengal, that I encountered Sri Yukteswar. He was then the head of a quiet ashrama near the seashore there, and was chiefly occupied in the spiritual training of a group of youthful disciples. He expressed keen interest in the welfare of the people of the United States and of all the Americas, and of England, too, and questioned me concerning the distant activities, particularly those in California, of his chief disciple, Paramhansa Yogananda, whom he dearly loved, and whom he had sent, in 1920, as his emissary to the West.