Windows and Mirrors

When you look into a mirror you see what is there When you look into a window you see what is could be there When you look into a mirror you see only you When you look into a window you see the many faces of you When you look into a mirror you see what you think you should When you look into a window you see things that you might not like Mirror show you the you the way you look to your self They shoe you the way people see you Windows show you worlds that you can’t go They show us the people we can’t be and also the people that we are Windows show you the way you could be Which one is better to see then window or the mirror?