Longde (Wylie: kLong-sde; Sanskrit: Abhyantaravarga) is the name of one of three scriptural divisions within Atiyoga, also known as Dzogchen or the Great Perfection which is itself the pinnacle of the ninefold division of practice according to the Nyingma school of Tibetan Buddhism. The name Longde is translated as 'Space Division' or 'Space Series' of Dzogchen and emphasises the emptiness (stong-pa) or spaciousness (klong) aspect of the Natural State.