When you settle on the beginning of a composition, fiction or nonfiction, your intent is to put characters and/or ideas into some tumble of intriguing outcome. In subsequent paragraphs, as the tumble accelerates, your intent is as likely to change as the increased momentum and direction of the characters and/or ideas.
You intend to make a wrong turn somewhere, find yourself lost, then consult your inner resources for the dramatic equivalent of a GPA, to guide you to some destination where you will have some question. Now, why didn't I see that? Or perhaps, Is there a destination I'm missing? And what about this: Is there a way I could have got closer?