Ise Shinto itself was built on the Shinponbutsujaku theory (Buddhist devas and types of Buddha are other forms of Shinto deities), antithesis of the Honji-suijaku theory (Shinto gods are locally-adjusted forms of Buddhism devas and types of Buddha).
伊勢神道自体は本地垂迹説に対する批判としての神本仏迹説に基づいていた。