The Eucharist is the source and summit of our faith. We come together as a community to worship, and as Catholics we are given the richness of God’s saving graces through participation in the sacrifice of the Mass.
The Mass is not a reenactment of an event, but a participation in the once-for-all sacrifice that occurs 2,000 years ago.
Receiving the Eucharist is also not meant to be a “Jesus and me” moment only, but a celebration of becoming one body in Christ with the rest of the community.
We receive Holy Communion to become a holy community. That is one reason why the community shares in a common physical disposition after Communion to show unity in community.
After reception of the Blessed Sacrament, participants show this unity by joining the rest of the community that collectively agrees to stand, or kneel or sit while others partake of the Body and Blood of Christ. (9:11)