In Tibetan religious literature, Jamgön Kongtrül's Treasury of Knowledge in ten books stands out as a unique, encyclopedic masterpiece embodying the entire range of Buddhist teachings as they were preserved in Tibet. In his monumental Treasury of Knowledge, Jamgön Kongtrül presents a complete account of the major lines of thought and practice that comprise Tibetan Buddhism. This first book of The Treasury which serves as a prelude to Kongtrul's survey describes four major cosmological systems fo