With the development of ancient society, Confucianism and geomantic omen have gradually become the spiritual needs of rulers, which have the most important influence on urban construction.
Confucianism advocates "propriety" and "golden mean". Under this idea, the ancient cities of China, especially the capital, paid attention to the strict layout of the central axis, left and right symmetry, three sets of square cities, and were arrogant and arrogant. The urban road pattern is regular and the latitude and longitude are distinct.
Even the colors and shapes of buildings are the embodiment of Confucianism.
It is this strict etiquette standard that makes the ancient cities of China show a neat rhythm and the overall characteristics of the city stand out.
Geomantic omen is a comprehensive science in ancient China, in which the idea of site selection, analyzed by our present scientific methods, can be seen that it embodies a scientific nature everywhere, which is the result of long-term observation of nature by the working people in ancient China.
In urban layout, geomantic omen applies the dialectical thinking of "Yin and Yang" and "Five Elements" to urban construction, so that urban construction embodies a harmonious beauty.
At the same time, it is explained by combining Yi-ology and mathematical theory, which makes the urban layout full of mystery.
As the essence of China's ancient philosophy, the unity of heaven and man advocates the unity of heaven and earth, pays attention to the harmony between heaven and earth, and embodies a kind of harmony between heaven and earth.
Under this idea, the symbolic layout represented by the method of "viewing heaven and earth" is widely used in urban construction, and the Forbidden City corresponds to the Wei Zi Garden in the capital construction, which embodies the idea that imperial power is a gift from heaven.