Three Classes of the Great Perfection
The Three Classes of the Great Perfection (Tib. Dzogchen Desum; Wyl. rdzogs chen sde gsum) is a revelation of Chokgyur Dechen Lingpa and Jamyang Khyentse Wangpo. It was revealed in 1857 at Meshö Dzomnang as an earth terma taken from the Lotus Crystal Cave (pema shelpuk; padma shel phug),
- Andreas Doctor, Tibetan Treasure Literature: Revelation, Tradition and Accomplishment in Visionary Buddhism (Ithaca: Snow Lion, 2005).
- Orgyen Tobgyal, The Life of Chokgyur Lingpa, Rangjung Yeshe Publications, 2000