In Chinese cosmology, dragons produce rain clouds. The dragon disappearing into and reemerging from clouds in this painting seems to generate rough waves in the water below, pulling it toward the sky. The shape of the foreground wave is indirectly sampled from a painting by 13th-century Chinese painter Yujian, a handscroll once owned by the Ashikaga military rulers of Japan. Sesson must have known the famous painting though copies, and made a copy of his own. Here, the wave reinforces the powerful quality of the dragon.