What are the values of seasonal poems?

Social function The Book of Songs was compiled in the Spring and Autumn Period, in fact, mainly for application: first, it was used as a teaching book for learning music and reciting poems; Secondly, as a ritual song for feasting and offering sacrifices; Thirdly, it can be used as a tool to express one's feelings in diplomatic occasions or speech responses. [ 19]? The diplomatic communication through poetry in the Spring and Autumn Period was very extensive, which made The Book of Songs a very important tool at that time. There are many records about this in Zuo Zhuan, such as poems satirizing the other side (twenty-seven years as "xianggong"), poems being laughed at because they didn't understand the other side's meaning (twenty years as Zhao Gong), poems in which a small country turned to a big country for help (thirteen years as Wen Gong) and so on. These quotations from The Book of Songs, or exhortations, or comments, or analysis, or expressions, have their own functions, but they have one thing in common, that is, all the quoted poems are "taken out of context"-take one or two of them, regardless of the meaning of the whole article. This phenomenon was called "commonplace" in the Spring and Autumn Period. In other words, at that time, the function of The Book of Songs was not in itself, but in "expressing ambition through poetry". If you want to express your ambition, you can quote a poem. Poetry serves the ambition, not what the original intention of the poem is, but whether the quoted content can explain the ambition. This is a true application of The Book of Songs in the Spring and Autumn Period, but its literary function has been misinterpreted. On the other hand, the expression of the function of giving poems to express aspirations conforms to the literary function of The Book of Songs, and it is a real "poem to express aspirations"-it reflects and shows the understanding of literary function and social significance, and it is the embryonic form of China's early literary criticism. For example, Xiaoya Knots Nanshan: "My father recited it to study Wang Yi". Elegance for the elderly: "Wang wants beauty, but uses big hints" and so on. Poets are aware of their purpose and attitude in writing poems, and use poems to express their thoughts and feelings and attitudes towards society and life, so as to achieve the purpose of praising, praising, persuading and satirizing. This is the true meaning of poetry, and it really fits the literary function and literary criticism of The Book of Songs. On the other hand, the social function of The Book of Songs is that the society (including scholar-officials and court rulers) uses it to publicize and practice self-cultivation in governing the country. This is one of the purposes of compiling the Book of Songs, and it is also the content that some scholars strongly advocated and promoted when the Book of Songs came into being. Confucius attached great importance to The Book of Songs, and he admonished his disciples and sons to learn it many times. For example, he said to Kong Li, "If you don't study poetry, there is nothing to say." (Ji's) Confucius thought: "Poetry can be appreciated, considerable, gathered and resentful." (Yang Huo) This is Confucius' highly generalized theory of "prosperity, management, group and resentment" in The Book of Songs, and it is also the reason why he believes that The Book of Songs will have great social functions. Confucius' theory of "Xing, Guan, Qun and Resentment" clarified the social function of The Book of Songs, which not only pointed out the literary characteristics of The Book of Songs that infected people with images and aroused readers' imagination and association, but also conformed to social life and achieved practical results.