Kun, one of the eight diagrams of Zhouyi, means the earth; It also means smooth and unobstructed, and the flat terrain can carry everything. The terrain is Kun, the gentleman carries things with morality, and the gentleman's way is also. So are harmony, coordination and balance. "Laozi" has a saying: sound and sound are in harmony. There are all kinds of scenery and melodies in the world, whether it is benevolence, wisdom and water, or willow in Pinghu, chirping birds, orchestral music and bamboo. If they are not harmonious, they will coexist peacefully and the world will be orderly. Heaven and earth are dry, and harmony is the way. He Kun, a picture scroll that all living beings look forward to, nourishes life with the meaning of heaven and earth and the wind of a gentleman.