The ritual of offering the guru mandala, i.e. offering a mandala of the Buddha, Dharma, and Sangha, to the guru, lies at the very heart of Newar Buddhism. Yagyaman Pati Bajracharya is a leading figure, perhaps the leading figure, in the contemporary revival of traditional Newar Buddhism, a religious tradition that goes back, in a direct line of descent, to the great monastic universities of northern India a millennium and more ago. This historical pedigree means that the rituals and practices of Newar Buddhism are unrecognized global treasures of intangible cultural and religious heritage.