That’s because he saw or encountered something that scared him without you knowing, and he was frightened, and he didn’t know how to tell you, so when he was asleep , sometimes I think of it and get scared when it rings. In rural areas, it is called losing one's soul. Because there are always things in children's minds, and their self-control is definitely not as strong as our adults. The scientific method is to pay more attention to them, slowly enlighten them and let them talk about it, and the superstitious method is to find a fortune teller and Feng Shui. The husband called the child's soul (the hair on the hair of the child who has lost his soul is straight, which is caused by being frightened. Take a look)