revealed by mchog gyur gling pa - gter ston, 1829-1870. Comprises texts from the rediscoveries of Chokgyur Lingpa, with liturgical notes by kong sprul blo gros mtha' yas and others. Collection of ritual texts to be recited to ensure longevity focusing upon a white form of Amitayus; from the liturgy of the Nyingmapa sect