The deepest impression of Andersen is the short story of a drop of sewage. It is said that countless bacteria in the sewage bite each other, but this is only a drop in a pool of sewage, and the sewage will eventually flow to the ocean. The fairy tales he wrote are basically tragic endings. When I was a child, I didn't like Andersen's fairy tales. On the contrary, I liked to listen to Grimm's fairy tales where the princess and the prince are happy together. After I grew up, I slowly understood the glowing foam on the sea.