Ok, so all of what you see around you is actually inside your brain in a different form (electrical/chemical signals from the sensory input which are processed through various structures in the brain). But where is the actual image that you see? So we can see a orange colour in front of us, but of course that can't be found in the brain, as well as the image that we see can't be found in the brain (only in a different form, but remember that we aren't talking about a different form here, we mean the actual image that we see, the final result of the processing that makes it up). By interpreting the signals of the brain scientists have been able, using computers, to actually render the scene that we see in front of us on a computer screen, perhaps they will one day make us able to record dreams and all sort of things. So we know that the brain uses sofisticated methods to assemble the image that we see in front of us, but we have no physical screen, and no physical "canvas" that the scene can be rendered upon. If physicality is all there is, then where is the actual image to be found (without resorting to measuring the brains signals)? Simply put; where does the brain paint the picture that we see?