If a writer stops observing he is finished. But he does not have to observe consciously nor think how it will be useful. Perhaps that would be true at the beginning. But later everything he sees goes into the great reserve of things he knows or has seen.
A tale from which pieces have been raked out is like a fire that has been poked. One does not know the operation has been performed, but everyone feels the effect.
Man is not only a contributory creature, but a total creature; he does not only make one, but he is all; he is not a piece of the world, but the world itself, and next to the glory of God, the reason why there is a world.