It is a superstitious practice to knock on the door three times when you go home for more than three days, but many people would rather believe it than believe it. Although I don’t believe in superstition, there are indeed many things in the world that cannot be explained by science. Although I don’t believe it, I don’t deny its existence. My family is from a rural area, and I have experienced many superstitious practices since I was a child.
Just like the question said, if you go out for more than three days and come home, you have to knock on the door three times before inserting the key. This is indeed what we do here, but most of them are from the older generation. Now of young people don’t believe this. Old people believe that if you have been away for three days and no one has been home these days, your popularity has been exhausted and some evil spirits will enter the home, so knocking on the door reminds them that someone is back and invites them away so that the key can be inserted. Enter the house, otherwise you will get sick, confused or something like that.
In fact, this is not only the case, we also have a lot of opinions about this type of thing. I have been listening to my grandfather’s words since I was a child, instilling superstitious ideas in us. For example, the bed at home should not face the bedroom door. When sleeping, Don't lie down with your head facing the front door, that's what a dead person does; don't go out in the middle of the night, there are more ghosts wandering outside, and people with low luck will be possessed; don't look in the mirror, don't count money, don't talk about someone in the middle of the night etc.
Which of the above is not something that those of us born in the 90s and 00s do now, such as not going out in the middle of the night? Is it possible? Young people don't go home until midnight every day.
Doesn’t it sound particularly ridiculous, but people of the older generation really believe this? Because they don’t believe it, they have also tested what grandpa said, and they dare not tell grandpa to listen, but it really doesn’t matter. Besides, everyone always has to go on a long trip. For example, it is normal to go on a trip for ten days and a half, or a business trip of four or five days is too long. According to this, even the timid people dare not go home.