The first part is the general outline of the whole article, pointing out that the most important thing in keeping in good health is to adhere to the virtual Tao in things and adapt to the changes and development of nature;
The second part uses the story of knowing how to treat cows to compare people's health, which shows that people should follow the laws of things in life and avoid the entanglement of right and wrong and contradictions;
The third part shows that the sage's attitude towards life, which keeps pace with the times instead of sticking to things, is to do his best, even doomed, and embodies the author's philosophical thought and life purport. The article describes vivid images and details, and the story contains reasoning, which is interesting and enlightening.