To me, the writer's main job is to just make the story unscroll in such a way that the reader is snared - she's right there, seeing things happen and caring about them. And if you dedicate yourself to this job, the meanings more or less take care of themselves. That's the theory, anyway.
The pains of disconcerted or frustrated habits, and the inherent pleasure there is in following them, are motives which nature has put into our wills without generally caring to inform us why; and she sometimes decrees, indeed, that her reasons shall not be ours.