Nowdays, the most frequently said word is "harmonious", which is also the core idea of the I Ching. It regarded nature and society as a whole and put forward the concept of "oneness of man and nature " as well as the principals of the heaven, earth and human beings. To be harmonious with the god, man should understand the basic philosophy of yin and Yang; to be harmonious with things and people on earth, we should blend firmness and gentleness; to be a respected man, one should possess benevolence and righteousness. Inferring the personnel from nature; knowing the nature from its development and follow its trail; seeking ways and technologies expecting a harmonious society, these are what we do.

Based on this ideology of harmony, TCM presents "oneness of nature and man" concept as a whole. Original work of TCM--Huang Di Nei Jing believes that man is the product of nature; he should coexist with nature and everything within it. People follow the internal law of nature, eating and living, work and exercise, and as the four seasons, geography and the social environment change, they make corresponding adjustments. So, in accordance with its natural tendency, people will have fewer diseases, postpone aging and live a longer life. People who go against and make destruction to the nature will be subjected and receive the retribution, leading to disease of the body.