From the earlier post( Understanding The Holy Eucharist.) , we saw that the Holy Communion which we receive in the Mass is truly and wholly the body and blood of Jesus Christ, our saviour. So many are yet to believe this. Of course it is a mystery and therefore you can't comprehend it. Do well to understand the little arithmetic you do in the classroom before you bother to comprehend God's greatness and mysterious nature.
...coming from the Church herself