First of all, poetry uses exaggerated techniques to express emotions. For example, when describing leaving Jiao's home, he dressed up with "heavy makeup" and left "a hundred tears". This kind of description vividly shows Liu Lanzhi's sadness, and strengthens the rendering power of this emotion through exaggeration.
Secondly, poetry uses romantic methods to express the plot. For example, before Liu Lanzhi committed suicide, her soul turned into a bird and flew into the sky. This romantic plot makes poetry full of imagination and mystery, and also shows people's sympathy and admiration for Liu Lanzhi.
Generally speaking, Peacock Flying Southeast develops exaggerated and romantic techniques on the basis of inheriting the techniques of fu, comparison and xing in The Book of Songs, which makes the poem have strong emotional color and artistic appeal. It is a classic of China's ancient poetry.