The whole point of being alive is to evolve into the complete person you were intended to be. I believe you can only do this when you stop long enough to hear the whisper you might have drowned out, that small voice compelling you toward the kind of work you'd be willing to do even if you weren't paid. Once you tune out the noise of your life and hear that call, you face the biggest challenge of all: to find the courage to seek out your big dream, regardless of what anyone else says or thinks.