The human mind is an amazing organ. As far as organs go it is even more impressive than the big one down at the coliseum they play at hockey games. It's capable of storing thousands of pieces of information, then forgetting the name of every CD you were interested in buying the minute you walk into a record store.
Perception is achieved through the human brain.
Women see the world in thousands and thousands of colours. I could look at a dress, and I would say that dress is black. But I would be wrong. It's a dark, dark navy. A colour my brain is unable to perceive.