Interpretation: 1, where bones and muscles combine. 2. Metaphor is the key or the most important key. Edit the source of this passage "Zhuangzi Health Master" and edit this passage 1, and the bones and muscles meet "Zhuangzi Health Master": "The skills and skills are not bad, and the potential is very poor." Lu Deming? Interpretation: "Ken, flesh and blood." Still a knot. "Song? Huang tingjian? The preface of Yi Xuan says, "My master will not give him a knife to solve the problem of cattle, and my husband will not give anything a wing. "Song Luyou's poem" Yi ":The matter of the cow cannot be solved, and the matter of the horse cannot be hidden.