World names the sphere in which all objectively regarded events take place, and so is itself akin to an event taking place in a larger sphere we might call galaxy or universe, or space-time manifold, but even this last is thought to be an event of its kind, a big-bang, say, taking place in another super-reality for which we don't yet have fitting concepts. The metaphysical principle here being that every kind of arising is inside of its sphere of possibility, the Being of being. Of course all of this could equally be viewed as taking place in Mind or Experience, names for another way of proceeding along this principle. And these two directions represent rival actualities, even if 'actuality' is ultimately only an experiential concept, an ultimacy. According to the way of Experience the proceeding does not end with Experience, this too arising within a larger sphere: that in which Experience itself arises. If you would call this 'Life' or 'Space' that would only be a weak analogy, its 'actuality' is dizzyingly abyssal; emptiness or Dharmakaya or Nirguna Brahman, neither dizzying nor abyssal, the no-ground of ground. You cannot think this but you may be mindful of it.