 To a similar end, Nietzsche’s doctrine of eternal recurrence (sections 285 and 341) serves to draw attention away from all worlds other than the one in which we presently live, since eternal recurrence precludes the possibility of any final escape from the present world. The doctrine also functions as a measure for judging someone’s overall psychological strength and mental health, since Nietzsche believed that the doctrine of eternal recurrence was the hardest world-view to affirm. There are some differences of scholarly opinion concerning whether Nietzsche primarily intends this doctrine to describe a serious metaphysical theory, or whether he is offering merely one way to interpret the world among many others, which if adopted therapeutically as a psychologically healthy myth, can help us become stronger.