" What is the connection we have to the world, Doctor? Is it our hands? Our sense of touch? Our eyes and ears? Our sense of smell, perhaps all these things? Are these the connections we have tot he world around us? No., They are not. The only true connection we have to the world is our minds. Yes, our senses can feed us information, but the information means nothing on its own. It is our minds that give things meaning. It is our minds that create the world for us. And minds can be mistaken. Minds can become confused. Damaged. What then of the world? How does it appear then? It, too, appears confused and damaged. "

― Marcus Sedgwick , The Ghosts of Heaven