Sarvabuddhasamayoga

Sarvabuddhasamayoga (Skt. Sarvabuddhasamāyoga; Wyl. sangs rgyas thams cad dang mnyam par sbyor ba), The Union with all the Buddhas within the Nyingma tradition is categorized as one of the Eighteen tantras of Mahayoga. Peter Szántó and Arlo Griffiths prepared an excellent overview Sarvabuddhasamayoga. Accordingly, their introduction states:

The Sarvabuddhasamāyogaḍākinījālaśaṃvara (henceforth Śaṃvara) is a significant transitional scripture between what later came to be viewed as the yogatantra and the yoginītantra (or yoganiruttara) classes; in modern scholarship, it is sometimes referred to as the “proto-yoginītantra”. Along with the Guhyasamājatantra, it bridges the gap between the type of esoteric Buddhism that by and large still operates within the realm of ritual purity and that of transgressive, antinomian esoteric revelation. The Śaṃvara was instrumental in introducing significant Śaiva elements into Buddhism, including the practice of enacting the pantheon in communal worship, the imagery of the cremation ground, and the almost the almost fully versified compositional style as opposed to mixed verse and prose. The text already existed in some form in the early 8th century.

Further Reading

• Szántó Peter-Daniel & Griffiths Arlo, "Sarvabuddhasamāyogaḍākinījālaśaṃvara." In Brill Encyclopedia of Buddhism, Vol. I Literature and Languages. Leiden: Brill, 2015: 367-372.
• Szántó Peter-Daniel. A Sanskrit Manuscript of the Sarvabuddhasamāyogaḍākinījālaśaṃvara: Handout for Manuscripta Buddhica Workshop 3 (Procida 2013)