Jesus asks Peter and the disciples; "Who do you say I am?" Than Jesus says you are Rock on which I will build my church. This also is the fundamental question we must answer to wisely answer "What will I do with my life". But this passage goes further. We see Jesus intended to build a "called community" the Church, he established it on the foundation of the Apostles, and gave it Authority. We sometimes think of the Church as optional, as long as we "Believe in Jesus". But if we believe in Jesus we also follow His will, which is to establish and build His Church. That too is our vocation, our call, each in our own way.