This is the first in a two-volume annotated translation of Tsong Khapa's Illumination of the Hidden Meaning (sbas don kun sel). A magnificent and massive commentary on the Cakrasamvara Tantra, this is first English translation of a work that marks a milestone in the Tibetan assimilation of the Indian Buddhist tantras.

This first volume, which includes Tsong Khapa's detailed introduction to chapters 1 to 24 of the 51 chapter root tantra, covers the history of the tradition, its interpretation, and a range of topics including the construction of the mandala, the...