In the Most Holy Eucharist, Mother Church with steadfast faith acknowledges the Sacrament of Redemption, joyfully takes it to herself, celebrates it and reveres it in adoration, proclaiming the death of Christ Jesus and confessing his Resurrection until he comes in glory to hand over, as unconquered Lord and Ruler, eternal Priest and King of the Universe, a kingdom of truth and Life to the immense majesty of the Almighty Father. 

The Church's doctrine regarding the Most Holy Eucharist, in which the whole spiritual wealth of the Church is contained, namely Christ, our Paschal Lamb, the Eucharist which is the source and summit of the whole of Christian life, and which lies as a causative force behind the very origins of the Church, has been expounded with thoughtful care and with great authority over the course of the centuries in the writings of the Councils and the Supreme Pontiffs. Most recently, in fact, the Supreme Pontiff John Paul II, in the Encyclical letter Ecclesia e Eucharistia, set forth afresh certain elements of great importance on this subject in view of the ecclesial circumstance of our times.