d*d

ok it's not *just* a chemical processor I adimit to over simplification there, but the idea that the brain is just about association is another one as is the quote above. The way you feel about the colour red does not affect the physical colour of it- wether abbatoir blood or ripe chilli it's still red because it's physical properties are such that when light hits it all the spectrum except the red part is reflected (thats how it works). our eyes pick up this red in the same way our brains processess it to tell us it's red in the same way, then association can begin.