This book presents to the reader the revealed insight and experienced understanding brought to light in response to questions asked of Yogacharya B.K.S. Iyengar over the years. At times the questions express doubts of the questioner, at other times it is their thirst for knowledge. This volume is like a deep well; one can draw water from its surface and quench one’s thirst, or one can, with effort, break the surface of the water and plunge into its depth where the cool waters are fed from an inexhaustible stream of distilled knowledge that can come only from one who has totally immersed himself in the ocean of wisdom.