Dzogchen, held as the highest teaching in the Nyingma school and in Bön, teaches that the mind’s nature, rigpa, is primordially pure and complete. Its practice consists in recognizing that nature through the teacher’s introduction and resting in it, rather than in gradual construction.
Dzogchen
The Great Perfection: a Tibetan teaching that the nature of mind is already perfect and needs only to be recognized.
Also: Great Perfection, Atiyoga