The Christian faith contains what seem like many impossibilities, the idea that God is three-in-one being chief among them. But, God's three-in-oneness is a picture that helps us care about the needs of others as much or more than we care about ourselves. You're worth a ton to God, and that worth doesn't change even when you give away your comfort/power/resources to someone else who needs it. In fact, when you do that, you're doing what Jesus did.