载营魄抱一，能无离乎？专气致柔，能婴儿乎？涤除玄览，能无疵乎？When carrying on your head your perplexed bodily soul/ Can you embrace in your arms the One and not let go? /In concentrating your breath can you become as supple /As a babe? /Can you polish your mysterious mirror / And leave no blemish?
『說文』：脊骨。也有一说是 “同行者，合拍的旅伴”。金文承续甲骨文字形。篆文在两个“口”之间加一连接竖线，强调两者之间的一体化联系。（见http://vividict.com/WordInfo.aspx?id=628）