The content of geomantic omen includes geomantic omen theory and the whole process of geomantic omen investigation, construction and auspicious choice.
The theoretical basis of geomantic omen is China's philosophical theory system of Yi-ology, which mainly includes the theory of harmony between man and nature, harmony between man and nature and the theory of yin and yang and five elements.
The five basic elements of Feng Shui are: forming mountains, regulating qi, practicing, choosing good fortune and respecting each other. The purpose of Feng Shui is to make use of internal vitality and external prosperity.