This book contains a commentaries on two important texts - the key points of the Samadhi Raja Sutra and an explanation of the great 19th-Century master, Jamgon Lodro Thaye's song of experience in Mahamudra. Khenchen Thrangu Rinpoche travels extensively worldwide. He overseas numerous monasteries and retreat centres, and is the author of Buddha Nature and The Practice of Tranquillity and Insight.