A tantric ritual for giving disciples confidence in the accuracy of a mantra, in which the vowels and consonants of the Sanskrit alphabet are written with colored powder in a grid on the surface of a metal mirror and the tantric master reads out, one by one, the grid location of the consonant and vowel for each syllable of the main mantra. After each specification of the consonant and vowel of a syllable, an assistant takes some colored powder from the mirror and uses it to write the syllable on the surface of another metal mirror.
Tibetan: སྔགས་བཏུས། sngags-btus
Other languages