"The inexhaustible richness of this sacrament is expressed in the different names we give it. Each name evokes certain aspects of it. It is called:ÿ Eucharist, The Lord's Supper, TheÿBreaking of Bread, TheÿEucharistic assembly, Theÿmemorialÿof the Lord's Passion and Resurrection, TheÿHoly Sacrifice, holy sacrifice of the Mass, "sacrifice of praise," spiritual sacrifice, pure and holy [...]
"The Eucharist is the sum and summary of our faith: 'Our way of thinking is attuned to the Eucharist, and the Eucharist in turn confirms our way of thinking.'" Source: Catechism of the Catholic Church #1327
"Finally, by the Eucharistic celebration we already unite ourselves with the heavenly liturgy and anticipate eternal life, when God will be all in all." Source: Catechism of the Catholic Church #1326
"The Eucharist is the efficacious sign and sublime cause of that communion in the divine life and that unity of the People of God by which the Church is kept in being. It is the culmination both of God's action sanctifying the world in Christ and of the worship men offer to Christ and through [...]
The Eucharist is "the source and summit of the Christian life.' "The other sacraments, and indeed all ecclesiastical ministries and works of the apostolate, are bound up with the Eucharist and are oriented toward it. For in the blessed Eucharist is contained the whole spiritual good of the Church, namely Christ himself, our Pasch." [...]
"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 [...]
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. Source: ÿCatechism of the Catholic Church #1322
"'Daily' (epiousios) occurs nowhere else in the New Testament. Taken in a temporal sense, this word is a pedagogical repetition of 'this day,' to confirm us in trust 'without reservation.' Taken in the qualitative sense, it signifies what is necessary for life, and more broadly every good thing sufficient for subsistence. Taken literally (epi-ousios: 'super-essential'), [...]
"Having passed from this world to the Father, Christ gives us in the Eucharist the pledge of glory with him. Participation in the Holy Sacrifice identifies us with his Heart, sustains our strength along the pilgrimage of this life, makes us long for eternal life, and unites us even now to the Church in heaven, [...]
"Communion with the Body and Blood of Christ increases the communicant's union with the Lord, forgives his venial sins, and preserves him from grave sins. Since receiving this sacrament strengthens the bonds of charity between the communicant and Christ, it also reinforces the unity of the Church as the Mystical Body of Christ." Source: [...]