The misty rain dreams of Jiangnan, which means that the beauty of Jiangnan is like a dream, like a dream, and it is rainy in Jiangnan. Misty rain is a true portrayal of the beautiful scenery in the south of the Yangtze River, and misty rain is a summary of artistic conception. Therefore, it is very in line with the artistic conception to add misty rain before "Dream of Jiangnan".