What does Confucius mean by "complaining about enjoying the scenery" in his poetic theory?

The resentment of the audience stems from Confucius' high generalization of the social function of poetry, which is a profound understanding of the aesthetic function and social education function of poetry, and has created a precedent in the history of China's literary criticism.

From The Analects of Confucius Yang Huo: "Confucius said,' Boy, why don't you learn a poem? Poetry can be appreciated, watched, grouped and resented; Your father is a thing, and your father is a distant thing; Learn more about the names of birds, animals and plants. "It explains the psychological characteristics of poetry appreciation and the social function of poetry art.

(1) Xing: Express your feelings. (2) observation: observation (society and nature). (3) group: make friends. (4) resentment: sarcastically complaining about thorns (unfair things). (5)you(r): near.

"Xing": Kong Anguo Note: "Xing, analogy." Zhu Note: "Love will." In other words, poetry expresses emotion through metaphor, stimulates readers' emotion, and thus affects readers' will;

"View": Zheng Xuan's Note: "View the ups and downs of customs." Zhu Note: "Seeing gains and losses" means that poetry reflects the real life of society, so poetry can help readers understand the political gains and losses of the rise and fall of customs;

"Qun": Kong Anguo's Note: "Live in groups and learn from each other's strengths." Zhu Note: "Harmony without flow." In other words, poetry can help people communicate their feelings, learn from each other and improve their self-cultivation;

"Complaint": Kong Anguo's Note: "Complaint stings politics." Change means that poetry can criticize and accuse rulers of political mistakes and express their dissatisfaction with tyranny.