శ్రీ గుహ్యకాలీ వజ్ర కవచమ్

The diamond armour of Guhyakali, titled the welfare of the universe, and its viniyoga names as its deity not one goddess but a series — Guhyakali from the one-faced to the hundred-faced — with Samvarta as the seer and phrem, sphrem and chrim for seed, power and pin. The armour proper works by pairing a chain of syllables with a named form for each part of the body: Siddhikarali at the head, Siddhivikarali at the forehead, Chandayogeshvari at the face, Vajrakapalini at the ears, and at the last the whole body given over to Guhyakali by day, by night and at the junctures. Rules for the preliminary practice and for particular applications follow the hymn.