The key to seeing why there should be a Eucharistic worship distinct from the Mass is that the Eucharist is Jesus Christ. No less than His contemporaries in Palestine adored and implored Him for the favors they needed, so we should praise, thank Him, and implore Him for what we need.
Pope Pius XIIWine is a splendid thing in and of itself, but it is nonetheless proper to examine the high nutritional and hygienic values of wine from a scientific point of view. We are convinced that scientists will thus perform a service to mankind, since at the same time they will help determine the measure beyond which its use is a misuse for all creation.
Pope Pius XIIThis practice of adoration is based on strong and solid reasons. For the Eucharist is at once a sacrifice and a sacrament; but it differs from the other sacraments in that it not only produces grace, but contains in a permanent manner the Author of Grace Himself. When, therefore, the Church bids us to adore Christ hidden behind the Eucharistic veils and to pray to Him for spiritual and temporal favors, of which we ever stand in need, she manifests faith in her divine Spouse who is present beneath these veils, she professes her gratitude to Him, and she enjoys the intimacy of His friendship
Pope Pius XIIAbove all, the state of grace is absolutely necessary at the moment of death; without it, salvation and supernatural happiness the beatific vision of God - are impossible.
Pope Pius XII