The practicality of mirrors has long been known in China, as attested by the following passage from the Pao Pu Tzu of Ko Hung (254-334 A.D.). Near Mt. Lin-lu is a pavilion where travellers staying the night often met with sickness or death. It was haunted by ghosts that took the form of men and women dressed in yellow, black and white.
東晉葛洪「抱朴子」登涉篇中，有一段關於銅鏡的記載，大意是：林慮山下有一亭，亭中有鬼，來投宿的旅人經常遇害，或死或病；這些鬼身穿黃、白、黑衣，作男、女形姿。