 According to Hyman, the sense or mode of presentation of a picture, expressed in the most general terms, is an aspect or view of an object or arrangement of objects, relative to an implicit point (or a variety of points) of view. (An “object” in this sense is not necessarily a “material object”, it might be a shadow, a rainbow, or part of the sky.) Different parts of a picture can present different aspects of an object or its parts, corresponding to different points of view, but nothing can be depicted independently of a point of view. Otherwise, Hyman points out,