On one of my expeditions to Himalayas, I met a tapasvi . He had a mystical calmness about himself. We had a long conversation after which I thought of leaving something for his expenses. I slipped my hand beneath the asan on which he was sitting to leave some money behind. As I did so, something pricked me. I lifted the cloth to find iron nails below… One of the 5 niyams in ashthang yog is ‘tapa’ , that is, to heat the body by giving it pain. It is a very basic purification, a means to cancel out your negative karmas , a tool to aid progress and evolution. Fasting/ Upavaas is one way of putting yourself through pain. Upavaas has a much greater connotation than what it is generally misunderstood as - mere holding back from eating certain foods. At Dhyan Ashram, sadhaks observe Upavaas in its aunthentic sense, that is, giving up pleasure to observe austerities...