Sometimes you feel like you're on top of the world. And sometimes you feel like the world is on top of you.
Sometimes all your battles have been won and you are reflecting on your glory. And sometimes it feels like you won't survive one more skirmish, altercation or challenge.
Sometimes you wonder if having dreams is worth it when all your dreams seem to have vanished or been destroyed or delayed beyond what you could have imagined.
At those times - when times are at their darkest - you simply must believe.