A farewell poem written by the poet Li Bai to his local friend Wang Lun when he was traveling in Jing County (now Wannan, Anhui). The poem depicts the scene when Wang Lun came to see Li Bai off by singing songs when Li Bai was about to leave in a boat. It expressed Wang Lun's simple and sincere feelings for Li Bai very simply and naturally. "The water in Peach Blossom Pond is a thousand feet deep, not as deep as Wang Lun's love for me." Li Bai picked up two sentences at hand. He first used "a thousand feet deep" to praise the depth of the water in Peach Blossom Pond, and then he changed the word "less than" and used a comparative technique to compare. The invisible friendship turned into a tangible thousand-foot pond, vividly expressing Wang Lun's sincere and deep friendship for Li Bai. The language of the whole poem is fresh and natural, and the imagination is rich and unique. Although it has only four sentences and twenty-eight characters, it is very popular. It is one of the most widely circulated masterpieces among Li Bai's poems.