Gongchig

The Gongchig (Wylie: dgongs gcig, "Single Intention" or "One Thought") is a book of commentary on the Buddha's teaching by Jigten Sumgon (1143–1217), the founder of the Drikung Kagyu lineage who is believed to be the reincarnation of Nagarjuna. He taught the Dharma to several thousand students for forty years.