In this episode we welcome back Jim Mallinson for another update on his pioneering research into the earliest Sanskrit texts of Haṭha Yoga. We discuss the Light on Hatha Yoga Project (2021–2024) which will produce a critical edition of the Haṭhapradīpikā. We then dive into the Dattātreyayogaśāstra, the "Dattātreya's Discourse on Yoga," perhaps the first text to teach Haṭhayoga within an Aṣṭāṅga framework. We discuss its authorship, dating, Vaiṣṇava milieu, yogic teachings, intended audience,...