In Zaido ritual, those who dedicate this sacred dance to the gods are called Noshu. They must purify themselves religiously by abstaining from meat, a practice called Shojinkessai. In addition to avoiding meat, many kinds strict rules are imposed on them. For example, Noshu are forbidden to sleep with their wives during Shojinkessai. Some Some noshu has to continue Shojinkessai for 48 days. Zaido has faced many difficulties to its survival throughout history, such as fires, theft of artifacts, and a lack of successors due to low birth rate or other reasons. In modern society, practicing Shojinkessai is very difficult.
