If it all comes down to belief then logical categories are fundamental. That this depends on that, that this other is certain or provable, or necessary or apodictic in some sense, and that other is hypothetical and so on, such considerations would belong to the hidden scaffold of the world. The world in which I find myself and the 'Í' who finds himself in it are each phenomenal, which means that in themselves they are momentary appearances. The mode of appearance of the 'I' entails a mysterious endurance (this mysteriousness being itself phenomenal, although quite irreducible), as if it had an 'identity' that persists across the flux of appearances. Identity too may be no more than an inflexion of a phenomenon due to an associated family of appearances, those of memory. We know however that memory is unreliable and full of gaps, and is in service to belief, to the believability of the world it helps construct - again, phenomenal modalities. In waking life we have a full immersion in a world which integrates subjective and objective phenomena combined with a strong belief in the reality behind the latter, while in dreams we have something similar but with much weaker criteria for consistency. On awakening we experience the complete dissolution of dream worlds. But what we experience in dreams is imagination subjected to a need for coherence, however myopic, so that whatever strange event arises it is woven plausibly into the dream narrative at the expense of its coherence on a larger scale. In so far as we are peripherally aware of being engaged in creating the dream we also participate in the urge to keep the dream going, like a bubble of belief that we are trying to protect from bursting. This means that we must view the confidence inspired by our waking belief in a world consistently underwritten by an external persistent reality with a certain scepticism. The creative power of belief must by its nature be in excess of expectation.