Faith is the art of holding on to things your reason has once accepted in spite of your changing moods.
In folklore (if not in history), the Vandals were barbarians who, as they sacked and looted Rome, defaced (primarily religious) works of art. (This is the origin of our modern term "vandalism.") Saints, on the other hand, are those set apart by God, and in the Bible, Paul seems to use the term to refer to all followers of Christ.