Shuttling through the image slices of the past and present with the characteristics of the times and special environments, the form of "new and old" comparison allows the senses to transition from one state to another, causing the viewer to experience an "epiphany". Through the comparison with the viewer's own experience, the effect of "gradual realization" is produced. The unknown information such as the development process of things between time points and the direction of things after time points is left to the viewer to imagine, creating a narrative effect in the juxtaposed image. Through continuous reflection and experiential recognition, the connotation of the image is reflected and deeply understood.