" The Book of Changes " says that the earth emphasizes the situation, and the earth completely values the situation.
The situation of the earth is very powerful. There are mountains, hills, ridges, and ruggedness. Some people will say, it would be great if the ground was flat. It would be great if I didn’t have to climb mountains and walk without strenuous efforts.
Think about it carefully, what would our lives be like if the earth were flat?
If the ground is flat, there will be no atmospheric pressure difference. Because the atmospheric pressure changes with the height of the terrain, the density of the air, and the coldness and heat of the air, and the density, coldness, and heat of the air are also related to the terrain. The higher the terrain, the thinner the air and the lower the pressure. Without the difference in atmospheric pressure, ink cannot be sucked into the pen, the syringe cannot suck medicine, and the infusion cannot be completed; without the difference in atmospheric pressure, everything can be as small as a suction cup, a pump, extubation in traditional Chinese medicine, or as large as water pump , pressure cooker, etc. It cannot be applied to people's lives.
If the land is flat, without the obstruction of mountains, various climates cannot be formed, because different climatic conditions are suitable for the growth and yield of different crops; different climatic conditions are also destined to affect industry, animal husbandry, Distribution areas of fisheries, etc. As the saying goes: "We rely on mountains to eat mountains, and we rely on water to drink water." If there were no barriers from mountains and hills, we would only have one kind of crops, or only one kind of industry or fishery, etc., and the earth would only have one kind of climate. It is terrible to think about it. Not only do we not have a diversified diet, but we cannot form a diversified culture, and there is no such thing as trade. The whole world is the same, and it is lifeless.
