The Eucharist is often referred to as the “source and summit of the Church.” In receiving this “sacrament of sacraments,” our Savior comes not simply to meet us but into us, fills us with himself, and sanctifies us with his own supernatural, divine life in order to transform us into his likeness. In consuming the Eucharist, “the mind is filled with grace, and a pledge of future glory is given to us” (Sacrosanctum Concilium, 47).