Some idioms are so widely misunderstood that their literal meanings have overtaken their original ones. For example, "wind from an empty cave" (, "kōng xué lái fēng", viz. "hot air") is now currently mistakenly used to describe rumors without source when the actual meaning is the opposite. It used to describe rumors with actual, solid sources or reasons. Likewise, "bare-faced facing the emperor" (, "sù miàn cháo tiān", viz. "without makeup") is now misused to describe beauty that doesn't require make-up, e.g., when entering court. Its original meaning is "to be confident in one's true look".