What are the three expressions in The Book of Songs?

The expressions of The Book of Songs are Fu, Bi and Xing. Fu Shuo's truth is that the poet expresses his thoughts and feelings and related things in a straightforward way. Comparison is a kind of analogy. Comparing one thing with another, the poet has skill or emotion and uses one thing as a metaphor. Xing is touching things to stimulate words, and objective things trigger poets' emotions and cause poets to sing, so it is often at the beginning of poems.

The application of Fu, Bi and Xing is an important symbol of the artistic features of The Book of Songs, and it is also the basic technique of China's ancient poetry creation. There have always been many arguments about the meaning of Fu, Bi and Xing. In poetry creation, Fu, Bi and Xing are often used together to shape the artistic image of poetry and express the poet's feelings. From the whole process of literary origin, xing is the characteristic of early poetry; From the perspective of poetry writers, it is the characteristic of folk songs; For example, from the way of creation, it is the characteristic of oral literature.