This word comes from the Song Dynasty writer Su Shi's Niannujiao Chibi Nostalgia. "Life is like a dream" is a word that the poet masturbates in a depressed state, but he didn't expect to eat, drink and be merry in time, and his "returning the river to honor the moon" was just pinning his ambition on the moon on the river.
By depicting the magnificent scenery on the river in the moonlit night, paying tribute to the ancient battlefield and remembering the talents, tolerance and achievements of romantic figures, this word expresses the author's grief and indignation in a tortuous way, and also shows the author's broad-minded heart of paying attention to history and life.