Topic summary
Anuttarayoga

Extracted from the Wikipedia article Classes of Tantra in Tibetan Buddhism.
Unsurpassable Yoga
Anuttarayoga is characterized by the practice of Deity Yoga as well as various subtle body yogas (such as the six Dharmas of Naropa), to generate great bliss and attain the subtle clear light (luminous) mind. According to Miranda Shaw, Anuttarayoga Tantra texts "have remained at the forefront of contemplation, ritual, and interpretation throughout the Himalayan Buddhist sphere".