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Rh the intensity of emotion, which had enveloped his life, in its comparison with the barren emptiness of the world passing in sense-presentation.

The world, given in sense-presentation, is not the aboriginal experience of the lower organisms, later to be sophisticated by the inference to causal efficacy. The contrary is the case. First the causal side of experience is dominating, then the sense-presentation gains in subtlety. Their mutual symbolic reference is finally purged by consciousness and the critical reason with the aid of a pragmatic appeal to consequences.

5. The Intersection of the Modes of Perception.

There cannot be symbolic reference between percepts derived from one mode and percepts from the other mode, unless in some way these percepts intersect. By this ‘intersection’ I mean that a pair of such percepts must have elements of structure in common, whereby they are marked out for the action of symbolic reference.

There are two elements of common structure, which can be shared in common by a percept derived from presentational immediacy and by another derived from causal efficacy. These elements are (1) sense-data, and (2) locality.