This sentence comes from the article "On the overall shape of Baoming" in Huangdi Neijing. The original text is: "The Yellow Emperor asked: Everything covers heaven and earth, and everything is ready, so it is not expensive for people. People are born with the spirit of heaven and earth, which is formed by the method of four seasons. Kings want to be sick and don't know. They are obsessed with bone marrow, and they are also worried in private. What can they do? "

The main meaning of this passage is that the Yellow Emperor is asking about the value of human life and how to maintain and maintain a healthy body state. He mentioned that although everything between heaven and earth is rich, nothing is more precious than people. People rely on the qi of heaven and earth and grow according to the laws of the four seasons. Kings and ordinary people want to keep healthy, but when the disease comes, it is difficult for them to detect and understand. If this disease is delayed for a long time, it will go deep into people's bone marrow and make people suffer greatly.

For the understanding and application of this passage, you can refer to other chapters in Huangdi Neijing. Huangdi Neijing is one of the earliest medical classics in China. It advocates the idea of "harmony between man and nature" and emphasizes the close relationship between natural environment and human health. In our daily life, we can also learn a lot about health care.

Huangdi Neijing is divided into Lingshu and Suwen, which is the earliest medical classic in China and one of the four classic works of traditional medicine (the other three are Difficult Classic, Treatise on Febrile Diseases and Shennong Herbal Classic).

Huangdi Neijing is a comprehensive medical work, which establishes the theories of Yin and Yang, five elements, pulse condition, Tibetan image, meridians, etiology, pathogenesis, symptoms, diagnosis, treatment, health preservation and luck.

Huangdi Neijing is the earliest and most influential medical classic in China. The compilation of Huangdi Neijing marks the formation of the theoretical system of traditional Chinese medicine and lays a solid foundation for the development of traditional Chinese medicine in recent years. It occupies an important position in the medical history of China, and is honored as a "family of physicians" by later generations.

The content of Huangdi Neijing is very extensive. Besides medical theory, it also records the knowledge and achievements of ancient philosophy, astronomy, meteorology, phenology, biology, geography, mathematics, sociology, psychology, temperament and other disciplines, and permeates these knowledge and achievements into medical theory, thus making the book a multidisciplinary oral work with medicine as the main body, which has always been valued by doctors and experts in related disciplines.