What happened to poetry in the early 1960s?

By the end of 1950s and the beginning of 1960s, the poetic world had changed from ode to battle hymn, which made the vast field of lyric poetry narrower and narrower, and gradually formed an unbreakable pattern. However, a group of poets who have had successful experience in creating narrative poems in the liberated areas, after a period of impetuous, are once again faced with historical changes and turning points, eager to express deeper and broader social and historical content and reveal more ideological themes. This "epic complex" has involuntarily become the driving force for them to continue to create narrative poems. According to rough statistics, nearly 100 narrative poems emerged in this period. The more important ones are: Chrysanthemum Stone, Song of Life, Biography of Levin (Part III), Xiangkunlun, Ruan's Zhang River Water, Golden Conch, Symphonic Poems of Baiyun Obo, Three Long Poems, Heroic Warfare and Biography of Driving Field. Guo Xiaochuan's Ode to Snow, Deep Valley, One and Eight, Severe Love, General Trilogy, Ai Qing's Black Eel, Hidden Gun, Cang Kejia's Li Dazhao, Wen Jie's Flame of Revenge, Oriental Huang Helang, Xu Jiarui, Gong Liu and Li Dazhao.