The following is an excerpt from Father Charles Arminjon's The End of the Word.
"...At the Elevation, we take the Host in our hands, just as Jesus Christ, at the Last Supper, took the bread and wine into His holy and venerable hands. Then our words cease, our personality disappears, and the voice of Jesus Christ replaces that of His minister. It is no longer we who speak, no longer we who live: the body of the priest has become the very body of God. Leaning over the Host, we do not say 'This is the body of Jesus Christ, this is the blood of Jesus Christ,' but 'This is my body, this is my blood.'
'A great mystery and a sublime dignity is that of the priest, to whom is given a power the angels do not have. Priests alone, properly ordained, have the power to celebrate and consecrate the body of Jesus Christ...'"
-Then End of the Present World and the mysteries of the Future Life by Father Charles Arminjohn and published through Sophia Press.