In some novels, characters can use one or more obscure words or symbols to express the plot and meaning so that the reader can infer the true meaning from the context and plot. This method was known as code words, metaphor, hints, and so on. For example, in Dream of the Red Chamber, Jia Baoyu often used some hints and metaphor when describing Lin Daiyu. For example, Lin Daiyu was made of water, which hinted at Lin Daiyu's character and characteristics, while soft described her soft body. In some science fiction and fantasy novels, characters can use symbols and marks to express meaning, such as symbols, symbol combinations, symbol symbols, etc. This technique allowed the reader to infer the story and the relationship between the characters by understanding the meaning of these symbols. Although some novels can use obscure language and symbols to convey the meaning, most readers can understand the true meaning through the context and plot. Therefore, the use of language and symbols was also very important in the creation of novels.