'Why is there something rather than nothing?' the core question of metaphysics should be asked with respect to experience: not what is or why is consciousness in a factical sense, but why any experience at all, and so ay world at all, rather than sheer nothing. It may be difficult to focus on this aright but it is the question most suited to consciousness, as if a first answer would be 'so that it can inquire into its own being.' Everything exists to distract from this but also to point to it, so that never stops haunting every occurrence, every presentation and situation.