I kept the other persons description because it just sounded so right: Everyone has a purpose. Maybe yours is to change the world. Maybe it's to change a persons world. Or helping someone who needs their world changed.
2 Corinthians But he said to me, "My grace is sufficient for you, for my power is made perfect in weakness." Therefore I will boast all the more gladly about my weaknesses, so that Christ's power may rest on me.