Bob Krekelberg:  

upon my mind at that time, and my impressions 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. We may go through life without suspecting their existence; but apply the requisite stimulus, and at a touch they are there in all their completeness, definite types of mentality which probably somewhere have their field of application and adaptation. No account of the universe in its totality can be final which leaves these other forms of consciousness quite disregarded. How to regard them is the question--for they are so discontinuous with ordinary consciousness. Yet they may determine attitudes though they cannot furnish formulas, and open a region though they fail to give a good map. At any rate, they forbid a premature closing of our accounts of reality. Looking back on my experiences, they all converge toward a kind of insight to which I cannot help ascribing some metaphysical significance."". More about Bob:"“The youth gets together his materials to build a bridge to the moon, or perchance a palace or temple on the earth, and at length the middle-aged man concludes to build a wood-shed with them.” Thoreau".