For Roger Vilder, movement involves the change, the mutation from one state to another on the physical, psychological, individual or group level. The evolution of forms in their proportions, colors and textures happens before our eyes.

"…My work is centered around a few physical and emotional feelings such as the growth of a shape or form, the filling of a crack, the expansion and contraction of matter, the change, mutation, metamorphosis of a shape. Coupled to those feelings are some more rational concerns such as the relationship of a unit to the whole, the similarities of motion cycles and evolution in different worlds seemingly without connections."