It is perilous to speak only of certain states of the eye by which composition is determined according to certain notions of pleasure. The eye always impinges on other spiritual spheres. A building is not a collection of surfaces, but an assemblage of parts, in which length, width, and depth agree with one another in a certain fashion, and constitute an entirely new solid that comprises an internal volume and an external mass. Light does not only illuminate the internal mass, but also collaborates with the architecture to give it its needed form. There is a mental component in architectural form operating against all haphazard irregularities. The speculative motion of light must attempt to embrace optical and spiritual realities and experiences dialectically.