One thing is clear from the Emmaus account: as the visible Christ becomes the invisible Christ, he is no less present in a relationship with the disciples that moves them to mission and proclamation. The breaking of the bread is the visible, prophetic, life-giving gesture of Jesus which actually takes shape in the lives of these disciples. Something like this is at the heart of what is called mystagogy. The invisible takes shape in the disciple. By this shall everyone know that you are my disciples. One could speak about the death and resurrection of Christ as the DNA of the Christian. It is what is also called grace, that God-shaping of us by the divine goodness.