"The Eucharist is the most perfect Sacrament of this union. By celebrating and also partaking of the Eucharist we unite ourselves with Christ on earth and in heaven who intercedes for us with the Father but we always do so through the redeeming act of his Sacrifice, through which he has redeemed us, so that [...]
"The Eucharist is the centre and summit of the whole of sacramental life, through which each Christian receives the saving power of the Redemption, beginning with the mystery of Baptism, in which we are buried into the death of Christ, in order to become sharers in his Resurrection, as the Apostle teaches." Source: Pope [...]
"Faith in and love for the Eucharist cannot allow Christ's presence in the tabernacle to remain alone (cf. CCC 1418). Already in the Old Testament we read that God dwelt in a 'tent' (or 'tabernacle'), which was called the '"meeting tent' (Ex 33:7). The meeting was desired by God." Source: Pope St. John Paul [...]
"The Synod speaks further of the Eucharist as the 'heart of priestly existence.' This means that the presbyter, desiring to be and remain personally and profoundly attached to Christ, finds him first in the Eucharist, the sacrament which brings about this intimate union, open to a growth which can reach the heights of mystical identification. [...]
"The tendency to celebrate the Eucharist only when there was an assembly of the faithful emerged in those years. According to the Council, although everything possible should be done to gather the faithful for the celebration, it is also true that, even if the priest is alone, the Eucharistic offering which he performs in the [...]
"The priest is quite aware that he cannot count on his own efforts to achieve the purposes of his ministry. Rather, he is called to serve as an instrument of the victorious action of Christ whose sacrifice, made present on the altars, obtains for humanity an abundance of divine gifts. However, he also knows that, [...]
"This is a wonderful expression: 'The center of the life of the entire Church.' The Eucharist makes the Church, just as the Church makes the Eucharist. The presbyter, having been given the charge of building the Church, performs this task essentially through the Eucharist. Even when the participation of the faithful is lacking, he cooperates [...]
"The Second Vatican Council recalled: 'Priests act especially in the person of Christ as ministers of holy things, especially in the Sacrifice of the Mass' (PO 13) and that without a priest there can be no Eucharistic sacrifice." Source: Pope St. John Paul II, General Audience, June 9, 1993
"We conclude this ecclesiological-Eucharistic catechesis by emphasizing that, if Eucharistic communion is the efficacious sign of unity, it then gives the faithful a continually new impulse to mutual love and reconciliation, and the sacramental strength necessary for preserving good understanding in family and ecclesial relationships." Source: Pope St. John Paul II, General Audience - [...]
"According to these words of Jesus, the Eucharist is a pledge of the resurrection to come, but it is already a source of eternal life in time. Jesus does not say 'will have eternal life,' but 'has eternal life.' Through the food of the Eucharist, Christ's eternal life penetrates and flows within human life." [...]