Why do some rural houses add water tanks at the door? What's the moral of this?

There is a big jar at home, which symbolizes good weather, good weather, full jar, full jar and abundant grain. Water also symbolizes a kind of wealth and vitality, which means that money is like water in this water tank.

The big water tank at the entrance of the farmhouse is a kind of inheritance, but also for the convenience of life; A big water tank is a necessity for every rural family. In the past, rural families usually put a big water tank in front of their homes and a big water tank in the kitchen. Some are made of stone, and some are made of clay. In the past, in the case of shortage of materials and food, you can also use water tanks to store food, which is both moisture-proof and rat-proof. Keep a few cans of food at home. Later, due to the distribution of fields to households, the grain output increased, and woven bags were used instead of bobbins and urns. So most of them went to the flower and bird market and antique market after being acquired. Mainly used for decorating the courtyard, stocking goldfish, all kinds of ornamental fish, raising turtles and aquatic plants. It can also be used to water flowers. ? Put water in it for a while to make it soft, and then water the flowers.

Because there is no running water, domestic water is taken from the well outside, so it is impossible to use it immediately. So the water used for several days is taken out at one time and stored in the water tank. Most of the water is picked up by poles. Two barrels of water weigh seventy or eighty kilograms. It is difficult to pick a box of water. Therefore, I cherish water very much. It is only used for boiling water and cooking. The clothes are washed in the puddle outside. In summer, the water tank also has a function of weather forecast. As the saying goes: the water tank wears a skirt, and it rains heavily for a while. In fact, water has a great specific heat capacity. Summer also absorbs heat, and the water temperature rises slowly, which also makes the water tank temperature low. Rainfall is formed, and the air contains a lot of water vapor. When the water vapor in the air meets the cold water tank, it will liquefy into small water droplets and attach to the outer wall of the water tank, just like a skirt with water droplets. So there are a lot of water droplets around the water tank, which indicates the arrival of heavy rain. Moreover, the distribution height of water droplets on the outer wall of the water tank is the same as the water depth of the water tank, and everyone understands the truth.

Now every household uses tap water, and the water tank can't be filled with water, but the water tank used before is intact and reluctant to throw it away.