Book 1 Chapter 39 The Prison Church - Blind Leaders of the Blind

The essence of the service consisted in the supposition that the
bits cut up by the priest and put by him into the wine, when
manipulated and prayed over in a certain way, turned into the
flesh and blood of God.

These manipulations consisted in the priest's regularly lifting
and holding up his arms, though hampered by the gold cloth sack
he had on, then, sinking on to his knees and kissing the table
and all that was on it, but chiefly in his taking a cloth by two
of its corners and waving it regularly and softly over the silver
saucer and golden cup. It was supposed that, at this point, the
bread and the wine turned into flesh and blood; therefore, this
part of the service was performed with the greatest solemnity.

"Now, to the blessed, most pure, and most holy Mother of God,"
the priest cried from the golden partition which divided part of
the church from the rest, and the choir began solemnly to sing
that it was very right to glorify the Virgin Mary, who had borne
Christ without losing her virginity, and was therefore worthy of
greater honour than some kind of cherubim, and greater glory than
some kind of seraphim. After this the transformation was
considered accomplished, and the priest having taken the napkin
off the saucer, cut the middle bit of bread in four, and put it
into the wine, and then into his mouth. He was supposed to have
eaten a bit of God's flesh and swallowed a little of His blood.
Then the priest drew a curtain, opened the middle door in the
partition, and, taking the gold cup in his hands, came out of the
door, inviting those who wished to do so also to come and eat
some of God's flesh and blood that was contained in the cup. A
few children appeared to wish to do so.