Well-known Indian teacher of yoga, meditation, and holistic health. At an early age he was ordained as a monk by a great sage of the Himalayas and later journeyed to numerous monasteries and caves, studying with many spiritual masters. Notable teachers he encountered included Mahatma Gandhi, Rabindranath Tagore, Sri Aurobindo, and Sri Ramana Maharshi. He studied psychology and philosophy in Varanasi and Prayas, India, and received a medical degree from Darbhanga Medical School in 1945. At a later date, he pursued a formal education at Oxford University, continuing his studies of Western psychology and philosophy in Germany and Holland for three years before coming to the United States in 1969. In the following year, he served as a consultant to the Voluntary Controls Project of the Research Department of the Menninger Foundation at Topeka, Kansas. Under scientific controls, he demonstrated such feats as manipulating his heartbeat at will to 300 beats per minute (effectively stopping the flow of blood) for seventeen seconds.