Things cannot be perceived without a boundary

In the Perception section of the A. Consciousness, Hegel illustrates some of the logical fallacies that when examined, help to illuminate the flaws of our method of perception, and the mental processes that follow, hence the title: Perception and the thing of Deception.  Hegel determines that the process of individualizing and defining certain characteristics or properties of a thing, begin with perception.  He makes the differentiation between perception and immediate sense certainty by stating that with sense certainty, one only comes in contact with the thingness in itself, without detail and only in presence.  In this regard negation is exclusive to perception, as one can only define what something is by having the fundamental understanding of what it is not.  This understanding creates the boundaries for, and subsequently the realm in which properties can be applied and recognized as independent from other things, these other things having boundaries and properties that define their thingness as well.  Similar to many things perceived, the state of the thing then becomes twofold, as it both acts as a preservation of certain properties and a negation of certain properties.  As it is defined by an object, such as a table is defined as separate from the floor because of the properties the boundaries of the floor contain, so to is the floor separate from table by the properties that the table contains.  Properties and therefore the items they entail, are considered the negatives of one another due to the universality of their nature.  Similar to how ‘here’ can be considered an idea of relativity dependent upon where the attention of the perceiver is being aimed, so to can the thing be defined by the properties that are being paid attention to.  The color Red is a property that can be contained within a thing; its redness can initially be known as a natural reaction, or sense certainty, inherent within man.  But prior to the conceptualization of red, it must have a counterpart, or a variable.  This variable ensures that red is not constant or enveloping all things.  Once it envelops all things through a constant nature, it is no longer a thing, as it has no boundaries, and no definition.