The Brain is free to create our reality in just about anyway it wants.
Exactly how "reality" is brought back together is not known. No single location or clearinghouse has been identified in the brain which like a movie screen holds the ultimate image. Perhaps our illusion of cohesion in the world is analogous to the illusion of the power to move that is imparted to a puppet. In truth, it originates from strings that come from many other places (fingers).
But what is fascinating about the brain is that it is free to choose the "strings" it uses; and even to add a few of its own to create our reality!
When we discussed Mysak's model, we noted that there were two boxes provided for perception.
One represented the structuring skills that are possible for us because of the nature of our particular central nervous system- a genetic (Species Specific) inheritance. The cat, for example, does not see the world the way we do.
The other, represented the influence of past experiences, learning and our personal needs, to mention a few.