This sentence comes from Xin Qiji, a writer in the Song Dynasty, and it is written as "Send a strong word to Chen Tongfu". The original sentence is: see the sword when you are drunk, and blow the horn when you dream. Eight hundred miles to divide the main fire, fifty strings to cross the Great Wall, and autumn soldiers on the battlefield.
Through the description of "drunkenness" and "dream back", this poem shows the author's ambition to kill the enemy and serve the country, as well as his helplessness and indignation.