It is said that painting bamboo is better than seeing sunshine and moon shadow on the paper window powder wall. I once wrote: "My bamboo is refined and elegant, with lines in calligraphy, lines in bamboo, shades in calligraphy, shades in bamboo, density in calligraphy and density in bamboo." He is good at writing bamboo, and even wrote the poem "Between Bamboo and Stone", expressing his aloof feelings with the "between nothing and many knots" of bamboo.