China's geomantic omen, now called residential environment theory, originated in primitive times, took shape in Yao and Shun periods, matured in Han and Tang dynasties and flourished in Ming and Qing dynasties. Fengshui is a valuable experience accumulated by human beings in their long-term life practice. Facing the sun, sheltering from the wind and rain, preventing fire, being close to water sources and facilitating travel have become the most basic living theories. For thousands or even tens of thousands of years, people have constantly summarized the advantages and disadvantages of living environment, and in the Han and Tang Dynasties, a very mature and systematic theory of China's geomantic omen was formed. Peng Zu's disciple Tsing Yi said, "The internal qi generates, the external qi becomes, the internal and external forces multiply, and the geomantic omen becomes its own. Guo Pu, a native of A Jin, explained Feng Shui in the Book of Tibetan Scriptures: "Qi dispels the wind, and the boundary water stops. The ancients gathered together and made it last forever, so it was called Feng Shui. Huai Nan Zi, which was conceived in Han Dynasty, recorded: the way of heaven and earth running. There are yin and yang changes in the moon, and there are also times when they collide and overlap with each other. The former is fierce and the latter is auspicious. Gai Kanyu actually means the way of heaven and earth. Xu Shen's Shuo Wen explains: Kan, Tian; I don't understand, tunnel. The definition of geomantic omen in Modern Chinese Dictionary refers to the geographical situation of residential bases and cemeteries, such as the context and the direction of mountains and rivers. Superstitious people believe that the quality of geomantic omen can affect the rise and fall of families and children. The word feng shui originated in Fuxi era. According to the simple map developed by Taihao Fuxi, it is inferred that the earth has a period of geomantic omen. " "Plain Sutra" records: "Textual research says: one fog, two geomantic omen, three mountains and rivers, four hills, five rivers, six rivers, seven small rivers, eight water shortages and nine water shortages. "The feng shui referred to here should be the original meaning of feng shui.
"Funeral Book" put forward Feng Shui for the first time: "Qi rides the wind and disperses, but stops at the boundary of water. The ancients gathered to make it last forever and stop it, so it was called Feng Shui. " Feng Shui: Tai Chi gives birth to two instruments (yin and yang, positive and negative), two instruments give birth to four phases (five elements), four phases give birth to eight diagrams, and eight diagrams give birth to twenty-four mountains. Feng shui is divided into: dragon, cave, sand, water, direction, meaning, shape and sky (celestial layout). All senior feng shui masters do it according to these principles, but they should be calculated according to human numerology and nature. Because the famous saying of the former people is: one life, two luck, three feng shui, four products and five studies; Zen master Pan Guojing said: Everything in the universe is changing, and it has gone through four stages: formation, existence, badness and emptiness. China ancients called geomantic omen geomantic omen, also called geography, so it was called geomantic geography. It can be interpreted as the research and analysis theory of (observing the sky), (exploring the ground), wind (airspace), water (hydrology and water quality) and land (topography and geology).