It was the first time I came to meet the man’s parents. Why did the parents give him books?

It means that the relationship between two people is like a book, which needs to be read carefully and slowly. In daily life, social interaction is essential. When a girlfriend goes to meet her parents at her boyfriend’s house for the first time, the other parent’s gift of a book means that the relationship between two people is like a book, and they need to be read carefully. , parent, formerly known as the head of the family, refers to parents or other guardians.