GuhyasamÄja-tantra
GuhyasamÄja-tantra, (āThe Mystery of TathÄgatahood [Buddhahood]ā), oldest and one of the most important of all Buddhist Tantras. These are the basic texts of the Tantricāan esoteric and highly symbolicāform of Buddhism, which developed in India and became dominant in Tibet. The Tantric form stands, along with the MahÄyÄna and TheravÄda, as one of the main branches of Buddhism.
The GuhyasamÄja Tantra is ascribed by tradition to the sage Asaį¹ ga. Much of its symbolism, appearing at the beginning of the VajrayÄna tradition, exercised a normative influence over that traditionās development. The first of 18 chapters presents the textās mandala (literally, ācircleā), a visual image used in ritual and meditation and understood as the symbolic embodiment of a Tantric text. In the centre of the mandala of this text stands Akį¹£obhya, the Imperturbable Buddha, the central celestial figure in Tantric Buddhist symbolism. Surrounding him are Vairocana, the Illuminator Buddha, in the east; AmitÄbha, the Buddha of Infinite Light, who dwells in the Western Paradise, the Pure Land; and the celestial Buddhas, Amoghasiddhi in the north and Ratnasambhava in the south. Other chapters present sexual and horrific symbolism, spiritual techniques, the nature of enlightened consciousness, and other central Tantric concerns.