Mirrors, like other everyday objects, figure in many Chinese metaphorical expressions; for example, an individual's discerning judgment may be described as "a bright mirror hung on high."
其實這只是鏡子象徵力量的一端，中國人還常喜歡把日用器具引伸做其他的比喻，就像「明鏡高懸」，即引喻官吏斷案明確，毋枉毋縱的精神。