Shugendo is a uniquely Japanese religion that united, with Japanese traditional mountain worship at its core, the Shinto religion, Buddhism, Taoism and Onmyodo (occult divination system based on the Taoist theory of the five elements).
修験道は日本古来の山岳信仰を中心にしつつ、神道、仏教、道教、陰陽道などが習合し確立された、日本独特の宗教である。