In medieval times, the “honji” (original Buddhist identity) associated with the Munakata goddesses was Benzaiten — the goddess of music, eloquence, wisdom, and wealth, derived from the Indian goddess Sarasvati. The water-dwelling nature of both deities made the association natural, and Itsukushima became widely revered as the “island of Benzaiten,” one of Japan’s three great Benzaiten sites alongside Enoshima (Kanagawa) and Chikubu-shima (Shiga).
Nearby Hiroshima Hijiyama Toshogu, Saikokuji in Onomichi, and Tomonoura in Fukuyama all belong to the medieval faith sphere linked to Itsukushima.