the name also refers to a body of teachings representing the culmination of all the practices of the sarma schools of tibetan buddhism, who believe it to be the quintessential message of all of their sacred texts. the "mudra" portion denotes that in an adept's experience of reality, each phenomenon appears vividly, and the "maha" portion refers to the fact that it is beyond concept, imagination, and projection. the practice of mahāmudrā is also known as the teaching called “sahajayoga” or “co-emergence yoga”. in tibetan buddhism, particularly the kagyu school, this is sometimes seen as a different buddhist vehicle (yana), the "sahajayana" (tibetan: "lhen chig kye pa"), also known as the vehicle of self-liberation.