"The Cycle of Fish" was created by Paul Klee in 1922 in memory of his late friend Mark. From full of hatred to hope for rebirth, it seems that the essence of the world has been seen through. There is one point from the ideological point of view: "There is still the flavor of later generations." In terms of expression techniques: geometric structures and pointillist colors are directly integrated into childish dreams. Keli uses the passion and religious insights in his heart to dissolve the appearance of the external world. This is the essence of Chinese traditional painting, "similarity and dissimilarity." "There are different approaches but the same effect."