1, source of inspiration: Introduce the source of inspiration for writing this poem, such as the rain scene in the south of the Yangtze River and the nostalgia for the water town in the south of the Yangtze River.
2. Theme of this poem: Explain the theme of this poem, such as expressing the tranquility and beauty of Jiang Nanyu.
3. Creation background: briefly introduce the background of creating this poem, such as the living environment and mood at that time.