The geomantic omen theory of our ancestors is summarized as "five geographical techniques" (dragon, cave, sand, water and direction), which is a scientific and highly summarized living environment of people. People use the "five laws of geography" to pursue harmony and unity, in fact, they pursue harmony and unity with nature in space.
1 dragon
"Who is the dragon? Yamaya. Why are the mountains so long? Because the dragon demon is charming and lively, ... so are the mountains, ... "(Zhouyi Yin Yang Jia). Dragon refers to a winding mountain, usually a mountain with flowing veins. On the plains, where there are no mountains, there are also "dragons". At this time, the "dragon" has turned to the underground, which refers to the underground rock and soil layer, and the underground rock and soil layer also has a trend. "There are dragons in the mountains, but they are distorted. Pingdilong originated from high vein and rose from star peak to low point. The high mountains recognize the stars and peaks, and the two sides of the flat land look for water potential. The place where the two water clips are real dragons, and the branches and leaves are around. " (Shake the Dragon Sutra). From the geological structure, water flows downwards, and so does the trend of rock strata. There is also a saying of "context" in our idioms. It can be seen that "Dragon" has a trend, and "Qi" is attached to "Dragon", and the trend is consistent with "Long Mai". "Dragon" is also divided into good and bad luck. Geelong is a light, fat, round, sharp, beautiful, powerful and majestic mountain range. This kind of dragon is called "real dragon" and can meet anger. Raptors are mountains with broken, bloated, weak, sparse branches and leaves and no trees. Such dragons are called "old dragons" and "dead dragons", and the gas they suffer is also bad and fierce. What we usually call "green mountains and green waters" and "green" refer to the greening of mountains. There are many trees on the mountain, which are called "green hills". Trees can play a role in soil and water conservation. If there are no trees on the mountain, it will cause soil erosion, and "green mountains and green waters" will become "wasteland". Gullies, landslides, collapses and other phenomena that are not conducive to mountain construction have caused serious economic losses and even threatened people's lives. Feng Shui believes that "dragon" cannot be broken, and "dragon" breaks "qi". From the perspective of modern science, the "Dragon" fault actually refers to the unfavorable geological conditions such as earthquake fault zone and ground fissure, which is not suitable for building. Furthermore, the firmness of underground rock and soil layer is directly related to the bearing capacity of foundation. It can be seen that the so-called "dragon" refers to the engineering geological conditions mentioned in our construction, and the study of "dragon" in Feng Shui is actually a part of geological science in modern science.
2 "Point" and "Tang Ming"
"Cave" is the gathering point of "Qi" and "Dragon", and "Tang Ming" is the place where we choose to live, live and work. "Ancient geographers named it" Tang Ming "after the place name in front of the cave (Yin and Yang Family of Zhouyi). Refers to the flat land near the water in front of the "hole". "Cave dwelling" often becomes an important place in the city, which is conducive to the accumulation of "gas". The relationship between "point" and "hall" is the relationship between "point" and "face" "Acupoints" play the role of "control points" and are the premise of Tang Ming. The positioning of "Tang Ming" is also in line with the "marginal effect" proposed by western scholars. As the saying goes, "relying on mountains to eat mountains, relying on water to draft." "It shows that mountains and water can provide necessary means of life and production for human beings. Close to water, there is a guarantee of life; Near the mountain, it provides all kinds of food for human beings. You can't be too far from the mountains or the water, which is also the embodiment of the "golden mean" advocated by Confucianism. Lujiazui in Pudong, Shanghai is a good example. Huangpu River flows from southwest to northeast, becoming a "jade belt with water" mode in traditional geomantic omen. Later, many high-rise buildings were built around a central green space, which can be regarded as the location of "Tang Ming", thus forming a typical "gas gathering" mode. From the perspective of urban management, it improves the environment of the community, thus increasing the economic value of the surrounding land. The choice of "cave dwelling" and "Tang Ming" is actually the site selection science in our modern urban construction, which needs to be comprehensively considered from many factors such as humanity and nature.