During December 2016, I visited the "Taipei Contemporary Art Biennial" at National Taiwan University of Arts. At that time, sunlight surrounded the environment of the old teachers' quarters, becoming a stage for the old walls and plants to interact. Light streams through the windows, as the wall sculptural works of the contemporary art biennial "Going Together" encounter the shadows cast by leaves—an intersection of windows and walls. This two-dimensional space coincides with the shadows of the leaves, creating a three-dimensional visual layer, representing the survival of plants.