The Treasure tradition of the Nyingma School of Tibetan Buddhism posits that in the eighth century, various adepts hid spiritual instructions ( , lit. “Treasures”) for the purpose of future discovery at auspicious times. discusses central themes and personalities in the history and practice of this tradition. It presents the first thorough survey of the revelations of the great visionary master Chokgyur Dechen Lingpa (1829–1870), including translations of selected texts with detailed commentary by Khenpo Rinchen Namgyal, one of Chokgyur Lingpa’s foremost students. Also included is a discussion of the criteria for evaluating the authenticity of those beings who claim to have revealed such Treasures of Buddhist teaching, by the renowned master Ju Mipham (1846–1912).