秘ひ教きょう

noun

esoteric religion; secret teachings

Refers to religious or spiritual teachings that are kept secret from the uninitiated, often associated with mystery cults or esoteric Buddhism.

• 秘ひ教きょうの儀ぎ式しきは一いっ般ぱんには公こう開かいされない。

  The rituals of the esoteric religion are not open to the public.