This article examines the translator, Rongzom’s, scholastic philosophical defense of early Dzokchen or “Great Perfection.” As our earliest instance of religious apologia in Tibet, this examination contributes to a growing body of knowledge about the Tibetan assimilation of post-tenth century of Vajrayāna Buddhism and the indigenous response to the forces of cultural transformation shaping the late eleventh/early twelfth century Tibet. Traditional authorities and academics have identified Dzokchen as a Tibetan tradition of Buddhism that drew intense criticism at the time from (...) renaissance agents. This paper explores the primary Tibetan response by describing Rongzom’s philosophical defense of Great Perfection. As such, it illuminates the intellectual and ideological context of the milieu as it evinces Rongzom’s innovation and mastery of Indian systems of logic, language, and epistemology in the Dzokchen approach to the Buddhist path. (shrink)