Ni Youyu’s works often display the intersection between historical and contemporary ideas, with the core value to achieve unity between man and nature. His “Waterfall & Rockfall” demonstrate the traditional Chinese ink painting technique heavily influenced by the artistic practices of the Song (960–1279) and Yuan Dynasty (1271–1368). Ni applies pressurized water to wash away layers of acrylic paint, a unique technique that he developed for almost 3 years, and repeats this process several times, controllable and uncontrollable at the same time, to ultimately achieve a surface that appears eroded by time. Meanwhile “flowing water” is originally an image that symbolizes “time” and “history” in Oriental philosophy. To some extent, the texture achieved by this technique is alike the ancient paintings, on which hundreds of years of weathering left mottled and fragmented marks. While looking closely, however, the painting reveals an Expressionism type of visual language and structure; one might also feel the impact from the making process.