There have been many religious forms in Japan. However, Japanese people do not have a clear belief system called “religion.” So that “Japanese religion” means “Japanese metaphysical common sense.” This metaphysical sense has been formed by integrating and mixing Buddhism, Taoism, and Confucianism, based on the indigenous Shinto (40-42). Here “metaphysical” means “a way of seeing or thinking of the universe or the total reality,” which is the core of religion. Religious forms are various, but their metaphysical core is consistent.