"'At the Last Supper, on the night he was betrayed, our Savior instituted the Eucharistic sacrifice of his Body and Blood. This he did in order to perpetuate the sacrifice of the cross throughout the ages until he should come again, and so to entrust to his beloved Spouse, the Church, a memorial of his death and resurrection: a sacrament of love, a sign of unity, a bond of charity, a Paschal banquet 'in which Christ is consumed, the mind is filled with grace, and a pledge of future glory is given to us.''"
From Catechism of the Catholic Church, Paragraph 1322, Retrieved from http://www.vatican.va/archive/ccc_css/archive/catechism/p2s2c1a3.htm
Who can receive the sacrament?
Catholics who are in a state of grace and have made their first Holy Communion can receive the sacrament.
What if I cannot attend Mass? Is there a way I can receive the sacrament.
If you cannot attend Mass due to an illness or physical limitation, please contact the parish office to acquire about having Holy Communion brought to you.
How can I learn more about the sacrament of the Eucharist.
The following links provide information about the sacrament.
Eucharist by Joseph Pohle in The Catholic Encyclopedia via New Advent