St. John XXIII—And a devotion to the Eucharist that is ardent, constant, and that carries over into works …

And a devotion to the Eucharist that is ardent, constant, and that carries over into works also has the effect of nourishing and fostering the inner perfection of his soul and assuring him, as he carries out his apostolic duties, of an abundance of the supernatural powers that the strongest workers for Christ must have.

— St. John XXIII