Good Names for New Horse?

I'm getting a APHA gelding next week. He's grey with white. He's very sweet and gentle. It's always been a dream of mine to own a horse (I'm 31) and now it's finally coming true. I'd like his name to be symbolic, something that relates to dream, spirit, the soul, freedom, pion. A name with deeper meaning, not Joe, Rocky, Trigger etc. Any thoughts would be helpful. Thanks!