Nothing real can be threatened. Nothing unreal exists.
Derpy, Pinkie Pie, Sweetie Belle, Chrysalis. Myself, summed up in four MLP characters. I'm a deeply flawed individual, but if you can get past that, I'm sure we can be the best of friends.
"Her crews are babes or madmen? Her port is all to make? You're manned by Truth and Science, and you steam for steaming's sake?" - Rudyard Kipling "The Three-Decker"
Follow your dreams. Even if they turn out to be unreachable, they can still shape the person you want to become, and sometimes that's all they need to do.