Explain my cooking, cooking, dismemberment and division. Metaphor after repeated practice, grasp the objective laws of things, do things with ease and use them freely. Subject-predicate type, as an object and attribute, contains commendatory meaning and is often used freely.

From "Zhuangzi's Health Master", I know how to help Wen Huijun with his hands, shoulders, feet, knees, and knives.