"The Eucharist is a sacrifice of thanksgiving to the Father, a blessing by which the Church expresses her gratitude to God for all his benefits, for all that he has accomplished through creation, redemption, and sanctification. Eucharist means first of all 'thanksgiving.'" Source: Catechism of the Catholic Church #1360
"But we must always take care that this great meeting with Christ in the Eucharist does not become a mere habit." Source: Pope St. John Paul II, LETTER DOMINICAE CENAE OF THE SUPREME PONTIFF JOHN PAUL II TO ALL THE BISHOPS OF THE CHURCH ON THE MYSTERY AND WORSHIP OF THE EUCHARIST, 2/24/1980 [...]
"Only do not lose sight of Our Lord in His Sacrament of obedience, if you would have the strength to obey always, in everything, promptly and joyously. What! Our Lord comes to you whenever you wish. You choose your hour, you yourself measure your dispositions, you present yourself, and He is already there." Source: [...]
"As this sacrament is a sacrament of faith, we must believe firmly that Jesus Christ is really present in the Holy Eucharist, that He is there living and glorious as He is in heaven." Source: St. John Vianney, The Meditations of the Curé D’Ars
"He once in Cana of Galilee, turned the water into wine, akin to blood, and is it incredible that He should have turned wine into blood?" Source: St. Cyril of Jerusalem, Catechetical Lectures
"Receiving Communion everyday for so many years! Anybody else would be a saint by now - you told me - and I… I'm always the same! Son, I replied, keep up your daily Communion, and think: What would I be if I hadn't received?" Source: St. Josemaria Escriva, The Way: The Essential Classic of [...]
"Our faith and the eucharistic liturgy both have their source in the same event: Christ's gift of himself in the Paschal Mystery." Source: Pope Benedict XVI, SACRAMENTUM CARITATIS (Sacrament of Charity), 2/22/2007
"The Eucharist, the sacrament of our salvation accomplished by Christ on the cross, is also a sacrifice of praise in thanksgiving for the work of creation. In the Eucharistic sacrifice the whole of creation loved by God is presented to the Father through the death and the Resurrection of Christ. Through Christ the Church can [...]
"After what we have said above, it must be held most certainly that the whole Christ is under each sacramental species yet not alike in each. For the body of Christ is indeed present under the species of bread by the power of the sacrament, while the blood is there from real concomitance, as stated [...]
"To every soul who visits Jesus in the Most Holy Sacrament, He addresses the words which He said to the Sacred Spouse: 'Arise, make haste, my love, my dove, my beautiful one, and come.' Thou soul which visitest Me, 'arise' from thy miseries; I am here to enrich thee with graces. 'Make haste,' approach, come [...]