Possibly the same distinction can be made between two reading roles: that of the reader for whom the text justifies its existence in the act of reading itself, with no ulterior motive (not even entertainment, since the notion of pleasure is implied in the carrying out of the act), and that of the reader with an ulterior motive (learning, criticizing) for whom the text is a vehicle towards another function. The first activity takes place within a time frame dictated by the nature of the text; the second exists in a time frame imposed by the reader for the purpose of that reading.
