Perception

A thought process

Can one perceive a thought
Of non existence?
Can one imagine
What it could be like.

Perception must have
A foundation of fact.
A knowledge of existence.
Black cannot be white.

Can one surmise nothing
And describe it in reality?
Can I swim in an ocean
Where water is only my thoughts?

Since my mind knows
And gathers facts,
It assimilates
Through association.