suggestion
Once upon a time in the state of Qi, there was a man who was timid and a little neurotic. He often thinks of some strange questions, which makes people feel confused. One day, after dinner, he sat in front of the door with a big cattail leaf fan to enjoy the cool, and said to himself, "What if it collapses one day?" Is it not wrong that we have no way out and will be crushed to death alive? "
Since then, he has been worried about this problem almost every day. His friends are worried about him when they see him in a trance and haggard all day. However, after everyone knew the reason, they all came to persuade him and said, "Dude! Why bother yourself about it? How can the sky fall? Besides, even if it really collapses, you can't solve it by yourself. Take it easy! " However, no matter what others say, he doesn't believe it, and he will always worry about this unnecessary problem. According to the above story, people later extended this idiom to "worrying about the sky." Its main significance is to wake people up from worrying about some unrealistic things. It has the same meaning as "much ado about nothing" [2]