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.

Ayu Khandro, also known as Dorje Paldrön, was a Tibetan yogini, practitioner and terton of Tantric Buddhism in Eastern Tibet. An accomplished Dzogchen meditator, she is known for her extensive pilgrimages throughout Tibet, long periods of dark retreat practice, the gongter of the practice of the yidam Senge Dongma, various forms of Chöd, and her lifelong dedication to spiritual practice.