To The Parnassus was Paul Klee masterpiece, which deeply expressed the painter’s great desire to reach the artistic peak. The subject of this painting contained two tiers of meanings. The first layer of meaning is: based on the myths and legends, Parnassus was the holy mountain in charge of art and music God Apollo and Muse. This work clearly expressed the painter’s wish to enter the temple of art. the the color of light. What these colors expressed was Klee’s inner feeling and his thought and insight for the life. The whole Expressionism painting not only had the rich contrast between the top and the bottom, but also owned the gradual upgrade from the lower left to the upper right. With this contrast and gradual change, Paul Klee created the indeterminate light and whirling visual effect and appropriately showed his slightly confused mood when he was in the pursuit of career. This painting also showed Paul Klee’s view of life: climbing the peak needed the constant accumulation, and consistently enriched its spiritual world.