What is the Reality?

In the movie The Matrix, Morpheus asks Neo: “What is real? How do you define real? If you’re talking about what you can feel, what you can smell, what you can taste and see, then real is simply electrical signals interpreted by your brain.” What the movie doesn’t tell us is that even when Neo awakens from the fake world of the “Matrix” into the “real world,” his brain will continue to construct his subjective experience, as all of our brains do, and this experience may or may not match reality. So in a way, we all live in the illusory “matrix” created by our brain. Years before The Matrix, neurologist and Nobel laureate Sir John Eccles wrote: “I want you to realize that there exists no color in the natural world, and no sound—nothing of this kind; no textures, no patterns, no beauty, no scent.”

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http://www.sciam.com/article.cfm?id=a-perspective-on-3d-illusions

The article is nice and vizualizes how we perceive things in reference to art.