We may graduate school, but we never graduate from the Church. We are not students of academics for life, but we are students of Jesus for life. We are disciples, he is our teacher. The reason for the cap and gown is that students wanted to be like their teachers. (The gown is modeled on the Franciscan and Dominican habits.) That is our call in life, to bear the likeness of Christ to others. You are the light of the world, the salt of the earth.