八はっ卦け鏡きょう

noun

bagua mirror; pa kua mirror

A mirror used in fengshui divination, often placed to deflect negative energy. The term is domain-specific to Chinese geomancy.

• 玄げん関かんの上うえに八はっ卦け鏡きょうを飾かざると、悪わるい気きを防ふせぐと言いわれている。

  It is said that placing a bagua mirror above the entrance wards off bad energy.