In most Shingon temples, this ritual is performed daily in the morning or the afternoon, and is a requirement for all acharyas to learn this ritual upon entering the priesthood. The original medieval era texts of the "goma" rituals are in Siddham Sanskrit seed words and Chinese, with added Japanese katakana to assist the priests in proper pronunciation. Larger scale ceremonies often include multiple priests, chanting, the beating of Taiko drums and blowing of conch shell ("horagai") around the mandala with fire as the ceremonial focus. Homa rituals ("sbyin sreg") widely feature in Tibetan Buddhism and Bön and are linked to a variety of Mahayana Buddhas and tantric deities.