The eight upside-down views: heretics believe in 常樂我淨 permanence, pleasure, personality, and purity; the two Hīnayāna vehicles deny these both now and in nirvāṇa. Mahāyāna denies them now, but asserts them in nirvāṇa. Also 八倒.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous