The celebration of the sacrament of the Holy Eucharist is the “source and summit of the Christian life.”
When we eat the broken Bread, we unite ourselves with the love of Jesus, who gave his body for us on the wood of the Cross; when we drink from the chalice, we unite ourselves with him who even poured out his blood out of love for us. Jesus himself celebrated the Last Supper with his disciples and therein anticipated his death; he gave himself to his disciples under the signs of bread and wine and commanded them from then on, even after his death, to celebrate the Eucharist. (YouCat, 208)
Preparation to receive the sacrament of Eucharist for the first time:
All children must have received religious instruction for at least one year before beginning preparation. This includes parochial school instruction and/or religious education.