(Tib. bla-med rnal-'byor, Skt. a-nu yo-ga)

In the Sarma (New Translation Period) Tibetan Buddhist schools, the fourth or highest class of tantra practice, emphasizing special internal methods for actualizing oneself as a Buddha-figure.

In the Nyingma system, the second of the three inner classes of tantra, emphasizing practices involving the subtle energy-system of winds, channels, and creative energy-drops.