From Pope Benedict XVI

"Before we can say 'I am Yours,' He has already told us, 'I am yours.' ...With His Incarnation, He said, 'I am yours.' And in Baptism He said to me, 'I am yours.' In the Holy Eucharist, He always repeats this 'I am yours,' so that we may answer, 'Lord, I am Yours'. - Pope Benedict XVI