If I am writing a fiction about a man who is lost in a desert, for example, I must not concern myself with whether, by the end of it, he will find his way out, but must see, in my mind’s eye, only that which is visible to me at each moment of that fiction’s progressing. Otherwise I risk forcing it toward some end I imagine is proper, or best, but that will always be artificial, rather than allowing it to find its own denouement, and thus be natural and true.