A01 44 - Vinculum caritatis

"The real primary effect of the Eucharist is the truth of the Flesh and Blood present in it. The form of bread and wine, the truth is of flesh and blood, the power is of unity and charity... Inseparably linked to the Eucharist is the unity of the faithful, who bear witness to reciprocal charity, as members of the same body, united, necessary for the world to believe" (The Eucharist: source and summit of the life of the Church. Lineamenta Synod of Bishops).