Composed after the An Lushan Rebellion when Cui Dong encountered his long-lost brother-in-law Zheng Sun by chance in River City, this poem captures the complex emotions of their impending farewell as Zheng prepares to depart for the capital. Through exquisitely observed details and profoundly sincere language, the poet renders their wartime reunion - a tender scene of kindred spirits reunited, knees nearly touching as they share memories by the hearth. Against the bleak postwar backdrop, this meeting offers not just warmth but also the startling realization of time's passage, brimming with nostalgia for vanished years, cherished bonds, and hopeful aspirations for a loved one's future. The poem's emotional cadence flows like drifting clouds and running water, at once grounded in harsh reality yet resonating with deep feeling.