Literature Reference: Clear writings do not leave the house, yet their images are vividly present before the eyes. Mist and snow fill the heart, orchids and herbs overflow the hands. The solitary light over the jade-green pond, a piece of Kunlun jade. First, singing of spring, the beautiful light transforms withered wood. Then, chanting of white snow, one feels the solemnity of the clouds. Source from 'To Yang Shiyu on His Clear Writings'.