"The holy Eucharist completes Christian initiation. Those who have been raised to the dignity of the royal priesthood by Baptism and configured more deeply to Christ by Confirmation participate with the whole community in the Lord's own sacrifice by means of the Eucharist" (CCC 1322)
Holy Communion may be received at home, in a nursing home, or in the hospital. If you find yourself unable to attend Mass and want to receive Communion, either you or an immediate family member may call the office to make the necessary arrangements.
not be conscious of grave sin. A person who is conscious of grave sin is not to receive the Body and Blood of the Lord without prior sacramental confession except for a grave reason where there is no opportunity for confession.
In this case, the person is to be mindful of the obligation to make an act of perfect contrition, including the intention of confessing as soon as possible (canon 916).
A frequent reception of the Sacrament of Penance is encouraged for all.
The Eucharist and the unity of Christians. Before the greatness of this mystery St. Augustine exclaims, "O sacrament of devotion! O sign of unity! O bond of charity!" (St. Augustine). The more painful the experience of the divisions in the Church which break the common participation in the table of the Lord, the more urgent are our prayers to the Lord that the time of complete unity among all who believe in him may return.
-- Catechism of the Catholic Church (§1398 - 1401)