Longdé

Longdé (Tibetan: ཀློང་སྡེ།, Wylie: klong sde, Sanskrit: abhyantaravarga) is the name of one of three scriptural divisions within Dzogchen, which is itself the pinnacle of the ninefold division of practice according to the Nyingma school of Tibetan Buddhism.

The name "longdé" is translated as "Space Division" or "Space Series" of Dzogchen and emphasises the emptiness (Tibetan: སྟོང་པ།, Wylie: stong pa) or spaciousness (Tibetan: ཀློང།, Wylie: klong) aspect of the Natural State.

Due to the different approaches of various Dzogchen lineages, three series of teachings have developed, of which longdé is one. The other two divisions or series are semde and menngagde. Penor Rinpoche attributes longdé to Dorje Zampa, Sri Singha and Vairotsana's lineage.