Here are the readings for the Solemnity of the Most Holy Body and Blood of Christ (Corpus Christi), June 22, 2014:
Deuteronomy 8: 2-3, 14b-16a
Psalm 147: 12-15, 19-20
1 Corinthians 10: 16-17
John 6: 51-58
On this feast, we turn our attention to the gift of Jesus' real presence for us in the Eucharist, a gift of sacrifice and love that nourishes us to offer our daily lives in loving sacrifice for others.
Here's a video that helps explain how Catholic understand the Eucharist: