In this homily, Bishop Robert Barron discusses the Feast of Corpus Christi, focusing on the theological significance of the Eucharist and its connection to the Old Testament temple sacrifices. He explains how the Apostle Paul understood Jesus's offering of his body and blood as a fulfillment of the temple sacrifices, particularly the Yom Kippur ritual where the high priest sprinkled blood for atonement. Barron emphasizes that Jesus, as the true high priest, offers his lifeblood for the forgiveness of sins, and that participating in the Eucharist allows believers to partake in this sacrifice, becoming one with Christ and living the inner life of God. He also connects this sacrificial understanding with the gospel reading of the multiplication of loaves, highlighting the Mass as both a sacrifice and a meal where believers consume the body and blood of Christ.