Sight vs Vision

After watching part of the movie Ray today I found some of the themes which were presented interesting. One in particular that caught my interest was when Ray gave an explanation of how he uses sound to make his way around to the bus driver he says how he hears things differently. There is no doubt that the man was talented and that he learned piano before he lost his sight but it brought up the question of if he would have had the same inspiration or even talent used in his songs which lead him to be so successful, or not.