As a natural science, this system combines the early knowledge of the sages with the knowledge of nature and geomantic omen. The whole system includes both the universe and human behavior. In short, this system believes that in the big environment, they all need to be mutually constrained and independent, and will eventually transform each other. The function of geomantic omen is to grasp the relationship between subsystems, optimize the structure and seek a better combination. The general principle is the general principle of geomantic omen. The Yijing class said that other principles are subordinate to the overall principle, and it is the basic feature of modern geomantic omen to deal with the relationship between people and the environment with the overall principle.
Second, the principle of adjusting measures to local conditions.
Serve the Yijing class with favorable price. Adjust measures to local conditions, that is, adopt a natural lifestyle according to the objectivity of the environment. China has a vast territory, different climate, different soil quality and different architectural forms, so people who are dry and have little rain in the northwest adopt cave dwellings. The cave is located in the south, and the construction is simple, occupying no land and saving materials. People can live longer and lay more eggs when it is warm in winter and cool in summer. Many people in the southwest live in bamboo houses with wet and rainy insects and beasts. The Yijing class said that adapting measures to local conditions is the embodiment of pragmatic thinking, and practical and effective methods have been adopted according to the actual situation to make people and buildings suitable for returning to nature and simplicity. The Yijing class says that the unity of man and nature is the true meaning of Feng Shui.
Yijingban said that if you want to live in harmony with nature, you must thoroughly investigate nature, so understanding the natural environment is an important step to live in harmony. However, the Yijing class does not deny that human society needs to transform nature to a certain extent in its reproduction and development. The purpose of transforming nature is to create a good living environment, but it cannot destroy the environment and needs to achieve a state of unity with nature.