Life is a very orderly thing but in fiction there is a huge liberation and freedom. I can do what I like. There's nothing that says I can't write a page of full stops. There is no 'should' involved although you wouldn't know that from literary reviews and critics.
Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works. If it works big others quickly copy it. Then you do something else. The trick is the doing something else.
