Dzogchen
According to Tibetan Buddhism and Bön, Dzogchen (Rdzogs chen or Atiyoga) is the natural, primordial state or natural condition, and a body of teachings and meditation practices aimed at realizing that condition. Dzogchen, or "Great Perfection", is a central teaching of the Nyingma school also practiced by adherents of other Tibetan Buddhist sects. According to Dzogchen literature, Dzogchen is the highest and most definitive path to enlightenment.
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