This year is already 2021. I don’t know whether you have succeeded in taking the postgraduate entrance examination. I am a student of Chinese language, and one of the characteristics of literary language is self-referentiality.
Excerpted from the textbook: The self-referentiality of literary language refers to the special property of literary language that not only expresses meaning but also attracts readers' attention through language's own techniques (rhetorical techniques), structure and characteristics. ...Literary language itself will also become the object of writers' aesthetic attention and artistic expression... Common techniques in poetry such as rhyme, parallelism, antithesis, allusion, metaphor, irony, as well as the use of statements and the practice of new language will actually strengthen literature. The self-referential tendency of language.