This book is based on the notes of weekly lectures given by Swami Yatiswarananda at Ramakrishna Math, Bangalore. The Swami, a Vice-President of the Ramakrishna Order, was an illustrious disciple of Swami Brahmananda. He was a well-known spiritual figure in the Neo-Vedanta movement and did 17 years of pioneering work (1933-1950) in spreading Vedanta in Europe and USA.
What is material and what is not material? When the world is the end and God the means to attain that end, then that is material. When God is the end and the world is only the means to attain that end, spirituality has begun.
-Swami Vivekananda