William James, The Varieties of Religious Experience (1902)
“ I have several times within the past few years felt the so-called 'consciousness of a presence.' The experiences which I have in mind are clearly distinguishable from another kind of experience which I have had very frequently, and which I fancy many persons would also call the 'consciousness of a presence.' But the difference for me between the two sets of experience is as great as the difference between feeling a slight warmth originating I know not where, and standing in the midst of a conflagration with all the ordinary senses alert. ”
