15 God gave us a most precious blessing when He gave us faith. By this gift we are not only raised above the level of human things, to contemplate and share in the divine nature, but are also furnished with the means of meriting the rewards of heaven; and therefore the hope is encouraged and strengthened that we shall one day look upon God, not in the shadowy images of His creatures, but in the fullest light, and shall enjoy Him forever as the Supreme Goodness. But the Christian is kept so busy by the various affairs of life and wanders so easily into matters of little importance, that unless he be helped with frequent reminders, the truths which are of first importance and necessity are little by little forgotten; and then faith begins to grow weak and may even perish.
Source: Magnae Dei Matris (Vatican.va)