Book excerpt: There have been reports of the amazing capacity of some of the Tibetan Buddhist Monks practicing Tummo meditation in Tibetan Buddhism at temperatures of around -250 C in the Himalayas. A team of scientists from USA and Israel went to these spots by carrying some dry towels with them. When these towels were made wet in the snow and spread on the naked bodies of the semi-nude meditating monks practicing Tummo meditation, to the surprise of these scientists, these towels were getting dried up in no time. Subsequently the analysts came to the conclusion that this meditation generated a lot of heat (inner fire) in the bodies of these meditators who were using it for the spiritual purpose. This incident triggered me to go deep in not only about Tummo meditation but many other profound meditation practices in Tibetan Buddhism in this book.