Dear Gregory

,
The Holy Fathers used to say that the Son was already been sacrified in the eternal sanctuary of the Trinity even before the world has been created. And all events of Christ's life are the one and same event, as all the salvific events of the history are part of the same Pascha-passage of God.
I have already thought that the greater sacrifice would be the Incarnation, although the deliver of Christ to us is more felt in the Cross. The "patriarch" (archbishop) of Lisbon have already said in an homily that in the Calvary the sacrifice is sensitive and visible, but in the Holy Meal are the signs of communion sensitive and visible, and during it the sacrifice was already present at the heart of the Son, He'd already offered Himself.