Tertön is a term within Tibetan Buddhism meaning a person who is a discoverer of ancient hidden texts or terma. Many tertöns are considered to be incarnations of the twenty five main disciples of Padmasambhava, who foresaw a dark time in Tibet. He and his consort Yeshe Tsogyal hid teachings to be found in the future to benefit beings. A vast system of transmission lineages developed. Scriptures from the Nyingma school were updated by terma discoveries, and terma teachings have guided many Tibetan Bon and Buddhist practitioners.

Padmasambhava, also known as Guru Rinpoche and the Lotus from Oḍḍiyāna, was a tantric Buddhist Vajra master from medieval India who taught Vajrayana in Tibet. According to some early Tibetan sources like the Testament of Ba, he came to Tibet in the 8th century and helped construct Samye Monastery, the first Buddhist monastery in Tibet. However, little more is known about the actual historical figure other than his ties to Vajrayana and Indian Buddhism.