Faith is born of an encounter with the living God who calls us and reveals his love, a love which precedes us and upon which we can lean for security and for building our lives. Transformed by this love, we gain fresh vision, new eyes to see; we realize that it contains a great promise of fulfillment, and that a vision of the future opens up before us. Faith, received from God as a supernatural gift, becomes a light for our way, guiding our journey through time. On the one hand, it is a light coming from the past, the light of the foundational memory of the life of Jesus which revealed his perfectly trustworthy love, a love capable of triumphing over death. Yet since Christ has risen and draws us beyond death, faith is also a light coming from the future and opening before us vast horizons which guide us beyond our isolated selves towards the breadth of communion. We come to see that faith does not dwell in shadow and gloom; it is a light for our darkness.
From his first encyclical, Lumen Fidei, paragraph 4.