As we all know, the water cycle is the biggest link that affects the climate and environment in this area. We regard the house in front of the water and behind the mountain as a small area. In summer, the water surface evaporates quickly during the day, and the water molecules evaporated into the air are blown into the house with the southeast wind, but they are blocked by the hills behind the house and stay in the house. That is to say, the house is cold at this time, which will play a role in heat preservation at night, but it is the opposite in winter.
According to the theory of geomantic omen, the house in front of the water and behind the mountain is a good place to hide wind and gather gas. The back hill can prevent the wind from blowing away the gas, while the surface water can condense the surrounding gas. Because mountains and water are the creations of nature, if nature is compared to a living flesh and blood, then mountains are the skeleton of flesh and blood, and water is the soul, which contains countless aura and vitality. The water on the back of the mountain is a rare treasure, which means that there is a mountain to hide the wind and running water to gather gas in front.
However, there are still some concerns about this layout. For example, the house should not be too close to the mountain, and the water in front should not be a stagnant pool. Mountain instability may lead to natural disasters such as mudslides in the rainstorm season, which is not conducive to people's survival in time, but running water can gather gas and make money. If it is stagnant water such as small puddles and pools, it means that there is no endless wealth, which is not conducive to making money. This is not a good sign for people who believe in Feng Shui. In a word, there are both geomantic and scientific reasons for choosing houses in front of water and behind mountains in ancient times.