18. The Divine miracles which take place to-day are not manifest, but hidden. In the course of their occurrence there are many happenings which, because they do not appear as miracles, are ascribed to chance, to prudence, or to nature, except by those who acknowledge the Divine Providence in every single event. They are hidden, for the reason already stated, in order that those minds should not be influenced inopportunely, whose interiors the Lord is preparing for receiving good and truth; but that they should be in freedom, that is, that they should receive their faith from an interior affection. That is why the Lord said to Thomas: 'Because thou hast seen Me, Thomas, thou hast believed; blessed are they who do not see, and yet believe.' (John 20:29.)