From ENCYCLICAL LETTER LUMEN FIDEI
OF THE SUPREME PONTIFF FRANCIS TO THE BISHOPS PRIESTS AND DEACONS CONSECRATED PERSONS AND THE LAY FAITHFUL ON FAITH:
"There is an urgent need, then, to see once again that faith is a light, for once the flame of faith dies out, all other lights begin to dim. The light of faith is unique, since it is capable of illuminating every aspect of human existence. A light this powerful cannot come from ourselves but from a more primordial source: in a word, it must come from God."