Communion under Both Kinds
281. Holy Communion has a fuller form as a sign when it takes place under both kinds. For in this form the sign of the Eucharistic banquet is more clearly evident and clearer expression is given to the divine will by which the new and eternal Covenant is ratified in the Blood of the Lord, as also the connection between the Eucharistic banquet and the eschatological banquet in the Kingdom of the Father.[104]
282. Sacred pastors should take care to ensure that the faithful who participate in the rite or are present at it, are made aware by the most suitable means possible of the Catholic teaching on the form of Holy Communion as laid down by the Ecumenical Council of Trent. Above all, they should instruct the Christian faithful that the Catholic faith teaches that Christ, whole and entire, and the true Sacrament, is received even under only one species, and hence that as regards the resulting fruits, those who receive under only one species are not deprived of any grace that is necessary for salvation.[105]
Furthermore, they should teach that the Church, in her administration of the Sacraments, has the power to lay down or alter whatever provisions, apart from the substance of the Sacraments, that she judges to be more readily conducive to reverence for the Sacraments and the good of the recipients, in view of changing conditions, times, and places.[106] However, at the same time the faithful should be instructed to participate more readily in this sacred rite, by which the sign of the Eucharistic banquet is made more fully evident.