What you are is God's gift to you, what you become is your gift to God.
Mary thus learns that the Most High has ever borne a Son in his bosom, and that this Son has now chosen her bosom as dwelling-place.
It is to the Cross that the Christian is challenged to follow his Master: no path of redemption can make a detour around it.
The saint is the apology for the Christian religion. He is holy, however, because he allows Christ to live in him and it is in Christ that he "glories".