Many erroneous explanations of natural phenomena, the majority of false scientific hypotheses, all religious and metaphysical systems, have arisen in such a way that mankind, in their thoughts and opinions, have interwoven, as equally valid components, ideas suggested by words only, together with such as were derived from direct perception. The words were either invented by mystics and originally indicated nothing beyond the unbalanced condition of a weak and diseased brain, or, whereas they at first expressed a definite, correct presentation, their proper meaning was not caught by those who repeated them, and by them was arbitrarily falsified, differently interpreted, or blurred. Innate or acquired weakness of mind and ignorance lead alike to the goal of mysticism. The brain of the ignorant elaborates presentations that are nebulous, because they are suggested by words, not by the thing itself, and the stimulus of a word is not strong enough to produce vigorous action in the brain-cells; moreover, the brain of the exhausted and degenerate elaborates nebulous presentations, because in any case it is not in a condition to respond to a stimulus by vigorous action. Hence ignorance is artificial weakness of mind, just as, conversely, weakness of mind is the natural organic incapacity for knowledge.
In one part or another of his mental field of vision each of us therefore is a mystic. From all the phenomena which he himself has not observed, everyone forms shadowy, unstable presentations. Nevertheless, it is easy to distinguish healthy men from those who deserve the designation of mystic. There is a sure sign for each. The healthy man is in a condition to obtain sharply-defined presentations from his own immediate perceptions, and to comprehend their real connection. The mystic, on the contrary, mixes his ambiguous, cloudy, half-formed liminal representations with his immediate perceptions, which are thereby disturbed and obscured. Even the most superstitious peasant has definite presentations of his field work, of the feeding of his cattle, and of looking after his landmark. He may believe in the weather-witch, because he does not know how the rain comes to pass, but he does not wait a moment for the angels to plough for him. He may have his field blessed, because the real conditions of the thriving or perishing of his seed are beyond his ken, but he will never so put his trust in supernatural favour as to omit sowing his grain. All the genuine mystic’s presentations, on the contrary, even those of daily experience, are permeated and overgrown with that which is incomprehensible, because it is without form. His want of attention makes him incapable of apprehending the real connecting links between the simplest and most obviously related phenomena, and leads him to deduce them from one or another of the hazy, intangible presentations wavering and wandering in his consciousness.
