Nine Yanas (Tib. ཐེག་པ་དགུ་, Wyl. theg pa dgu) or nine successive vehicles (Tib. ཐེག་པ་རིམ་པ་དགུ་, Wyl. theg pa rim pa dgu) — within the Nyingma tradition, the full spectrum of spiritual paths is divided into nine yanas, a system of practice bringing together all the approaches of the Buddha’s teaching into a single comprehensive path to enlightenment.
The Nine Yanas
i.e. the three yanas related to the outer vehicle of leading from the origin [of suffering] and the three pitakas of characteristics
i.e. the three yanas related to the inner vehicle of Vedic asceticism and the three outer classes of tantra
i.e. the three yanas related to the secret vehicle of powerful transformative methods and the three inner classes of tantra
The vajrayana is not a separate vehicle from mahayana, but actually belongs within mahayana as a distinctive vehicle of skilful means.
Wyl. rang grol lam.
1. the shravaka yana
Subdivision According to the Three Kayas