Oniyō

Oniyō refers to the traditional Japanese belief in the supernatural and spiritual world, specifically involving the concept of onryō, which are vengeful spirits of the deceased. These spirits are thought to manifest malevolent intentions, often influenced by strong emotions like anger or sorrow from their untimely deaths. Oniyō practices include rituals and ceremonies aimed at appeasing these spirits to prevent misfortune or unrest. Rooted in Shinto and Buddhist beliefs, Oniyō has significantly influenced Japanese culture, arts, and literature, highlighting the deep connection between life, death, and the spiritual realm in Japan's historical context.