The idiom 反璞归真 is formed by combining two parallel verb-object phrases: 反璞 (meaning "to revert to unadorned jade") and 归真 (meaning "to return to genuineness"). Here, 反 and 归 both mean "to return", 璞 refers to "natural, unpolished jade" representing simplicity, and 真 denotes "authenticity". The juxtaposition of these phrases reinforces a single concept, discarding artificiality to restore an original, pure state.