67 No one can fail to see that the divine Eucharist bestows an incomparable dignity upon the Christian people. For it is not just while the Sacrifice is being offered and the Sacrament is being confected, but also after the Sacrifice has been offered and the Sacrament confected—while the Eucharist is reserved in churches or oratories—that Christ is truly Emmanuel, which means "God with us." For He is in the midst of us day and night; He dwells in us with the fullness of grace and of truth. (68) He raises the level of morals, fosters virtue, comforts the sorrowful, strengthens the weak and stirs up all those who draw near to Him to imitate Him, so that they may learn from his example to be meek and humble of heart, and to seek not their own interests but those of God. Anyone who has a special devotion to the sacred Eucharist and who tries to repay Christ's infinite love for us with an eager and unselfish love of his own, will experience and fully understand—and this will bring great delight and benefit to his soul—just how precious is a life hidden with Christ in God (69) and just how worthwhile it is to carry on a conversation with Christ, for there is nothing more consoling here on earth, nothing more efficacious for progress along the paths of holiness.
Source: Mysterium Fidei (Vatican.va)