Of course, these are all folklore. The working people in ancient China always liked to describe everything as a good thing and a happy event, because it would make people very happy to sum it up. Scientifically speaking, there are several reasons why there are cobwebs at home. First, there are holes in your windows and gauze, and spiders have access. Second, your family may not pay much attention to hygiene and often clean the room. Of course, it may also be that the owner is kind and doesn't like to hurt small animals. Third, the environment in your home is warm and humid, because the spider's favorite environment is a state of temperature of 25-35 degrees and humidity of 35%-55%.
It should be noted that most spiders are non-toxic and do no harm to human beings. They will also clean up mosquitoes, flies and flying insects at home, and even some spiders specialize in killing cockroaches, so be kind to them. In a word, spiders entering your home is by no means a sign of disaster, nor is it a happy arrival. This is just a coincidence of nature. If you want to get rid of spiders, don't kill them Putting them outside is the best choice.