དེ་ཡང་སྒམ་པོ་པས་གསུངས་པ། ང་ཡི་ཕྱག་རྒྱ་ཆེན་པོ་ཡི། ངོས་འཛིན་རང་གི་རིག་པ་སྟེ། གཞུང་ནི་རྒྱུད་བླའི་བསྟན་བཅོས་ཞེས། In that regard Sgam po pa says, “the hallmark of my Mahāmudrā is self-awareness and its scriptural source is the Uttaratantra [RGV] treatise”. quoted by shAkya mchog ldan in gsung 'bum (Sachen International: Kathmandu, 2006), Vol. 17: 364.
Mahāmudrā refers to an advanced meditation tradition in Mahāyāna and Vajrayāna forms of Into-Tibetan Buddhism that is focused on the realization of the empty and luminous nature of the mind. It also refers to the resultant state of buddhahood attained through such meditation practice. In Tibet, this tradition is particularly associated with the Kagyu school, although all other schools also profess this tradition. The term also appears as part of the four seals, alongside dharmamūdra, samayamudrā, and karmamudrā.
An important term for the Yogācāra that refers to a consciousness of consciousness itself, or how one knows that they know something. It was a hotly debated topic that was disputed by followers of the Madhyamaka. In Tibet it would later become a common Dzogchen term, though with the entirely different meaning of one's own innate awareness (rig pa), a crucial concept in the Dzogchen teachings.