The Sarvadurgatipariśodhana tantra (SDP) has informed Tibetan Buddhist funerary practices since it was first translated into Tibetan in the late eighth century. One of its most influential interpreters was the Sa skya pa hierarch Rje btsun Grags pa rgyal mtshan (1147– 1216), whose Light Rays for the Benefit of Others: The Rituals of Sarvavid offers detailed instructions for performing the…