"Clouds" contains 123 poems written by Shan Cun Mu Niao, which can be called a simple song that perfectly integrates "innocence", "childlike innocence" and "oriental". From his youthful pursuit of avant-garde and passion for skills to his gradual peace after many vicissitudes of life, the author observes all things with an innocent and transparent heart, and expresses what he sees and feels in a light-ink freehand style. When reading, it feels like you can smell the fragrance of vegetation emitted by a good soul.