The most holy Eucharist contains the Church's entire spiritual wealth: Christ himself, our Passover and living bread.
Through his own flesh, now made living and life-giving by the Holy Spirit, he offers life to the human race.
Vatican II, Presbyterorum Ordinis
The sacraments of Christian initiation - Baptism, Confirmation, and the Eucharist - lay the foundations of every Christian life... "the faithful are born anew by Baptism, strengthened by the sacrament of Confirmation, and receive in the Eucharist the food of eternal life. By means of these sacraments of Christian initiation, they thus receive in increasing measure the treasures of the divine life and advance toward the perfection of charity.