"On the night of that last supper
Seated with His chosen band
He, the Paschal Victim, eating,
First fulfills the Law's command:
Then as food to all His brethren
Gives Himself with His own hand.
Word made flesh the bread of nature,
By His words to flesh he turns:
Wine into His blood He changes
What though sense no change discerns.
Down in adoration falling
Lo, the Sacred Host we hail,
Lo, o'er ancient forms departing
Newer rites of grace prevail;
Faith for all defects supplying,
Where the feeble senses fail."
(From: Pange Lingua Gloriosi, written by Saint Thomas Aquinas thirteenth century)