The Feast of Corpus Christi
"It is truly the one, identical Lord, whom we receive in the Eucharist, or better, the Lord who receives us and assumes us into himself. St Augustine expressed this in a short passage which he perceived as a sort of vision: eat the bread of the strong; you will not transform me into yourself, but I will transform you into me. In other words, when we consume bodily nourishment, it is assimilated by the body, becoming itself a part of ourselves. But this bread is of another type. It is greater and higher than we are. It is not we who assimilate it, but it assimilates us to itself, so that we become in a certain way “conformed to Christ”, as Paul says, members of his body, one in him.
We all “eat” the same person, not only the same thing; we all are in this way taken out of our closed individual persons and placed inside another, greater one. We all are assimilated into Christ and so by means of communion with Christ, united among ourselves, rendered the same, one sole thing in him, members of one another."
Pope Benedict XVI