Lost in imagination

Do you ever get lost in imagination? You forget that everything you imagined is not real, just your imagination?
That happens to me. I always imagine things, and I forget that it isn't real...
Sometimes I image performing on stage. That's what I want to do. I don't want to be famous, but I still want to sing in front of everyone. But I can't. I don't have a band and in my opinion I can't sing.
I know I can't do it, so sometimes I image it. But I become so lost in it, that I forget it's not real...