This poem is a significant late work by Du Fu, composed around the autumn of 767 CE during the Dali era of Emperor Daizong, while the poet was living in hardship in Kuizhou (present-day Fengjie, Chongqing). Although the An Lushan Rebellion had been suppressed, the nation remained unstable, beset by crises such as separatist warlords, the dominance of court eunuchs, and invasions by the Tibetan Empire. Elderly and in poor health, Du Fu felt deeply the peril of his personal fate and the hardships of the nation. This poem, through highly condensed symbolism, integrates natural imagery with anxiety for the state, presenting the mature style of his later years that masterfully combines profound melancholy, measured rhythm, and incisive depth.