The Liturgy of the Eucharist begins with the preparation of the gifts and the altar. As the ministers prepare the altar, representatives of the people bring forward the bread and wine that will become the Body and Blood of Christ. The celebrant blesses and praises God for these gifts and places them on the altar, the place of the Eucharistic sacrifice. In addition to the bread and wine, monetary gifts for the support of the Church and the care of the poor may be brought forward. The Prayer over the Offerings concludes this preparation and disposes all for the Eucharistic Prayer.
Because sharing at the Eucharistic Table is a sign of unity in the Body of Christ, only those in communion with the Catholic Church may receive Holy Communion. To invite others present to receive Holy Communion implies a unity which does not exist. Those who do not receive Holy Communion still participate in this rite by praying for unity with Christ and with each other (more).