“At the Last Supper, Our Savior instituted the Eucharistic Sacrifice of his Body and Blood, by which the Sacrifice of his Cross is perpetuated until he comes again; and till then he entrusts the memorial of his Death and Resurrection to his beloved spouse, the Church” SC#47. In and through the celebration of the Divine Mysteries in Word and Sacrament we are constantly being built up into the Body of Christ.
As St. Augustine reminds us that through our faithful reception of the Eucharist we become what we receive. Therefore, all Catholics over the age of reason and who are in good standing with the Church are encouraged to receive this Sacrament weekly. It is required that you fast at least one hour before you receive Eucharist.