Putting a Face on the Pathogen and Its Nemesis

Abstract

In medieval Japan, so-called “four boundary demarcation rituals” were believed to turn invisible epidemic disease-bringing “demons” into visible beings. Making the demons visible, at least to the ritual experts involved, was a way of controlling them. The demons had a dual nature in that they harmed humans but could also become powerful protectors against disease and other calamities. This essay introduces the elaborate ritual culture of yin-yang divination, esoteric Buddhism, and kami worship in Japan, all of which involve “demonic” and protective deities. It explores images of two epidemic demons that serve humans as guardians and protectors against epidemic disease: Tenkeisei 天刑星, the Star of Heavenly Punishment, and Gozutennō 牛頭天王, the Bull-Headed Divine King. Tenkeisei ultimately merged with Gozutennō, who is also conflated with the deity Susanoo 素戔嗚.