The Three Roots Sadhana

At the age of twenty-eight, on the fifteenth day of the fourth month in the Fire Dragon year (19 May 1856), Terchen Chokgyur Lingpa revealed The Sevenfold Cycle of Profundity (Zapa Kordün) from Damchen Drak at Akanishta Karma. The Three Roots Sadhana (Tsawa Sumkyi Druptap) constitutes the main sadhana of the sixth cycle, The Profundity of the Three Roots of Longevity (Tsasum Tse Zapa).