Akanishtha

Akanishtha (Skt. Akaniṣṭha; Tib. Ömin; Wyl. 'og min) —

1. The highest heaven of the form realm. According to Mahayana, buddhas first reach full enlightenment in Akanishtha, and then manifest enlightenment through a nirmanakaya body in the human realm.
2. Akanishtha (Wyl. 'og min stug po bkod pa'i zhing khams), in Vajrayana, also refers to the pure sambhogakaya field from which emanate all pure nirmanakaya fields. In the three kaya mandala offering of the Longchen Nyingtik Ngöndro, Akanishtha is also referred to as 'the highest heaven of great bliss, the realm of Tukpo Köpa' (Wyl. stug po bkod pa).
3. Akanishtha is also the name of Vairochana's buddha field.