Senses

The chief among the defilements are the three that the Buddha has termed the "roots of evil" -- greed, hatred and delusion

Perception and Cognition.
Perception is based on twelve gateways or modalities, six of these being the five sense organs plus the mind, or "inner sense," and the other six being the objects of each of these. The Eighteen Factors of Cognition Consciousness | Sense Organ | Object | Consciousness | | Eye | Material Shapes | Visual | | Ear | Sounds | Auditory | | Nose | Smells | Olfactory | | Tongue | Tastes | Gustatory | | Body | Tangibles | Tactile | | Mind Mental | Objects | Mental |

(Senses+object)+interpretation=Perception.
Perception+mental Action=Cognition.
Subject + Object = Perception
Perception + cognition + Space-Time = Thought, Concept, Intellectualism, Imagination, etc

For example, When I see a girl (eyes see image of a girl: a sensation, conscious of a name of girl: a perception), I cognize that I perceive the girl: a cognition. I say, "When I see a girl, I can say I am aware that I see the girl, that is I cognize the perception (I cognize that I perceive a girl). When I am thinking, I am aware of thinking, so on.

" Perceive a part of senses (sensations) to get a perception.
Cognize the perception to get a cognition." (Pho Nguyet)

True Mind = Pure Cognition + spaceless-no time
"Perceive a first point of a sense to get a pure perception.
"Cognize the pure perception to get a pure cognition and separate it. It is a True Mind or an Absolute Entity."

Visual

(Object+Light) (Eye+Retina)(Other cells)( Rods and Cones) nervous impulses ( other cells for coded and organized)OPTIC NERVEBRAIN

I see the object = I see its light or