If you imagine that the objects in your world are dreamlike appearances constituted via complex syntheses out of atomic sensations, the you are helpless before the mysterious and wonderful obduracy and infinite unexpectedness of things. When you think in this mode of the sensational 'matter' underlying such appearances then they are framed as bodily effects imperfectly grasped, like those that dreams cunningly convert into presentations of imaginary worlds. This frame already begs the question of inside and outside, and makes the veritable outside into something positive but not directly knowable outside the reach of the intimate sphere. It gives only possible content of consciousness the same status as the 'I', as if consciousness is limited by the questionable reality of that self. Consider, however, that while it is true that consciousness by its very nature cannot encounter anything other than itself it bears no phenomenological resemblance to the 'I'. The mysterious otherness of the world is in consciousness, is inward, but is nothing like the ancillary idea of the self. All this means is that the alien quality of things loses its alienating quality. It is not exactly a metaphysical difference that is in play here but simple one of the values associated with that difference.