Light has an essence; darkness has no essence. True light has no darkness; darkness is the lack of light. Because of the lack of light, the darkness, the backside, and the negative forms are reduced to invisibility in the shallow world, but Tian Longyu insists on making them visible, and the artist's whimsical ideas unfold from there, manifesting themselves in various aesthetic forms that are visible. If man-made light is biased, Tian Longyu reverses it, illuminating the blind spots of bias and bringing more truth to light. In this exhibition, the interior of a plaster statue, the negative shape of a city outline, and the reverse path of a painting procedure are transformed into a visual spectacle, dispersing the reverse of light. This exhibition is academically hosted by Du Xiyun.