72 The Church in the past has felt and still feels that nothing is more ancient and more pleasing than the desire for the unity of all Christians, and We want to express this in the very same words that the Council of Trent used to conclude its decree on the Most Holy Eucharist: "In conclusion, the Council with paternal love admonishes, exhorts, begs and implores 'through the merciful kindness of our God (73) that each and every Christian may come at last to full agreement in this sign of unity, in this bond of charity, in this symbol of harmony; that they may be mindful of the great dignity and the profound love of Our Lord Jesus Christ, who gave up His precious life as the price of our salvation and who gave us His flesh to eat (74); and that they may believe and adore these sacred mysteries of His body and blood with such firm and unwavering faith, with such devotion and piety and veneration that they will be able to receive that supersubstantial (75) bread often and it will truly be the life of their souls and the unfailing strength of their minds, so that 'fortified by its vigor,' (76) they may be able to move on from this wretched earthly pilgrimage to their heavenly home where, without any veil, they will eat the 'bread of angels' (77) that they now eat beneath the sacred veils." (78)
Source: Mysterium Fidei (Vatican.va)