What we have mentioned is supported by the fact that a person perceives all information through one of the five powers, the sensory power, which is based on the five powers of smell, taste, touch, hearing, and sight. Sight perceives colors, colors, and people to a known extent of nearness and distance. So the one from which it perceives at one mile is different from the one from which it perceives at two miles, and the one from which it perceives it. At twenty lengths, other than the one from which he reaches at a mile, and the one from whom he reaches with his hand in his hand is opposite him, other than the one from which he reaches at twenty lengths. The one from whom he reaches at two miles is a person who does not know whether he is a human or a tree, and at a mile he knows that he is a human, and at twenty lengths he knows that he is white or black, and the opposite is the case. It is blue or darker, and so are the rest of the senses in their perceptions of proximity and dis