Like when you pick up a book and you don't realize what type of text it is - it could be an essay, a novel, a biography - and at one point you realize you don't know where, as a reader, you want to be. Where are you going with this text? What is the goal? How are you supposed to interpret what you're reading? And people's responses vary - some dislike it, and are put off by the confusion, the lack of comprehension.