This famous vajra song (dorje lu), named after its initial syllables “ema kiri”, appears in the “Tantra of the Union of the Sun and Moon” (“Nyi Da Khajor”). It consists of a series of arranged syllables which a practitioner should intone melodiously. The individual syllables and their arrangement as a mantra are considered particularly sacred since they are said to have been revealed by the primordial buddha Samantabhadra.
