“One conclusion,” he said, “was forced upon my mind at that time, and my impression of its truth has ever since remained unshaken. It is that our normal waking consciousness, rational consciousness as we call it, is but one special type of consciousness, whilst all about it, parted from it by the filmiest of screens, there lie potential forms of consciousness entirely different…. No account of the universe in its totality can be final which leaves these other forms of consciousness quite disregarded.”
