Zheng Kuai's poem is a vivid depiction of the atmosphere at the border, where the military is preparing for battle. The poem skillfully uses natural imagery to convey the emotions of parting and to encourage the soldiers. Spring appears fragile in this setting, while autumn winds bring strength. The poet bids farewell to his friend on a rainy night, as they head towards Yunzhou, where the city is hidden behind sandy shrubs and the river flows day and night. The generals are in the midst of defeating the enemy, and the poem urges them not to be stingy with their good strategies.
