Many early Buddhist Tantric texts, later termed “action Tantras” (kriyā tantra), are mostly collections of magical mantras or phrases for mostly worldly ends called mantrakalpas (mantra manuals) and they do not call themselves Tantras. Later Tantric texts from the eighth century onward (termed variously Yogatantra, Mahayoga, and Yogini Tantras) advocated union with a deity (deity yoga), sacred sounds (mantras), techniques for manipulation of the subtle body and other secret methods with which to achieve swift Buddhahood. Some Tantras contain antinomian and practices such as ingesting alcohol and other forbidden substances as well as sexual rituals. Some of the unique themes and ideas found in the Buddhist Tantras is the revaluation of the body and its use in attaining great bliss (mahasukha), a revaluation of the role of women and female deities and a revaluation of negative mental states, which can be used in the service of liberation as the Hevajra Tantra says "the world is bound by passion, also by passion it is released".