Literary language emphasizes the theme through certain literary techniques, such as metaphor, personification, imitation, duality, falsehood, description, inversion of subject and object, intonation and word order (different levels of ancient poetry).

However, the description of the theme in ordinary language is not obvious.

Note that literary language does not refer to ancient poetry, but also includes modern poetry, language and foreign works.

For example, the night gave me black eyes, but I used them to find light.

Another example is Tagore's description in the poem "The farthest distance in the world" in "Birds".

Another example is the online buzzword: others have a background, and I have a background. (Laughing at the current social situation by contrast and special exclamation), if it is described directly in ordinary language, it is difficult for people to resonate with me because others have backgrounds and I have no background.

Learning literary language is mainly about learning descriptive techniques.