Please talk about the meaning of image category. Is there a concept of literary category?

Talking about "Jiang Nanyu" is closely related to grandstanding. From ancient times to the present, the first choice for literati to create a sad artistic conception is misty rain in the south of the Yangtze River. The clear memory, the slow sadness and the melancholy loss in the rainy lane all give people a hazy feeling of misty rain in the south of the Yangtze River. I have always felt that the rain in the south of the Yangtze River has turned sadness into a symbol and grace into a bone, surrounded by sensibility and rationality. It seems that as soon as I meet the rationality of Jiang Nanyu literati, I will unconditionally submit to sensibility. Perhaps this is the unique charm of Jiang Nanyu. Just as Cao Xueqin said in A Dream of Red Mansions, "Daughters are made of water and men are made of mud", the rain in the south of the Yangtze River is just like a woman, as always, pitiful and stingy, and it has never changed, while the rain in the north is a man. Perhaps the rain in the south of the Yangtze River has created a graceful image of the south of the Yangtze River, but what is certain is that the image of the south of the Yangtze River has influenced the children of the south of the Yangtze River.