The visual images and terms employed in the following model are chosen without regard to the sources from which they have been derived. Soon other clouds form: some of these are new clouds, some formed from old ones, probability clouds that have changed into possibility clouds. The situation must be conceived of as tense however little appears to be happening. If the qualities represented by point or line are a function of the relationship between the point and line; if the point is representing a genetic stage and the line the category of use, it is clear that the rules governing the manipulations of point and lines are really governing the relationships between two aspects of the same object—the point. The rules governing points and lines which have been elaborated by geometers may be reconsidered by reference back to the emotional phenomena that were replaced by “the place where the mental phenomena were”.