Please see Postulate Mechanics.

The assimilation of sensation brings about perception. Lack of assimilation causes a corruption of perception, or simply no perception but with discomfort, anxiety and some imagination.

Definition of PERCEPTION

Perception is the instant interpretation by the mind of what is sensed by the sense organs. The elements of such sensations collect in the mental matrix and may be used again. 

These elements may be recombined and recalled, in which case they are perceived as MEMORY. 

These elements may be combined knowingly and creatively for some purpose, in which case they are perceived as IMAGINATION.

These elements may combine themselves in unexpected ways in response to stimuli, in which case they are perceived as HALLUCINATION.

We normally perceive what is there mixed with some memory, imagination and hallucination.

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Misconceptions

In the absence of the concepts of perceptual elements and mental matrix, many phenomena related to the mind are difficult to understand. For example, personal anomalies are perceived when one becomes aware of discontinuities, inconsistencies and disharmonies among the elements of the mental matrix.

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