For example, if you want to know the knowledge of the Three Kingdoms, but you can't remember it when reading a book, you can listen to Yi Zhongtian's Taste of the Three Kingdoms or watch movies and TV series on the theme of the Three Kingdoms in the lecture room, and you will gain relevant knowledge unconsciously.
With this desire and interest to find the plots and characters you are interested in, you will unconsciously confirm by reading some books, thus meeting your expectations.