Yogacharya BKS Iyengar is the founder of Iyengar Yoga, and is often referred to as "the father of modern yoga." Yogacharya, who is also author of several books, believes that "Health is a state of complete harmony of the body, mind and spirit. When one is free from physical disabilities and mental distractions, the gates of the soul open". Shekhar Gupta, Editor-in-chief, The Indian Express spoke to the Yogacharya about his life and the wonderful world of yoga.