What, in fact, do we know about the peak experience? Well, to begin with, we know one thing that puts us several steps ahead of the most penetrating thinkers of the 19th century: that P.E'.s are not a matter of pure good luck or grace. They don't come and go as they please, leaving 'this dim, vast vale of tears vacant and desolate'. Like rainbows, peak experiences are governed by definite laws. They are 'intentional'. And that statement suddenly gains in significance when we remember Thorndike's discovery that the effect of positive stimuli is far more powerful and far reaching than that of negative stimuli. His first statement of the law of effect was simply that situations that elicit positive reactions tend to produce continuance of positive reactions, while situations that elicit negative or avoidance reactions tend to produce continuance of these. It was later that he came to realise that positive reactions build-up stronger response patterns than negative ones. In other words, positive responses are more intentional than negative ones. Which is another way of saying that if you want a positive reaction (or a peak experience), your best chance of obtaining it is by putting yourself into an active, purposive frame of mind. The opposite of the peak experience--sudden depression, fatigue, even the 'panic fear' that swept William James to the edge of insanity--is the outcome of passivity. This cannot be overemphasised. Depression--or neurosis--need not have a positive cause (childhood traumas, etc.). It is the natural outcome of negative passivity. The peak experience is the outcome of an intentional attitude. 'Feedback' from my activities depends upon the degree of deliberately calculated purpose I put into them, not upon some occult law connected with the activity itself. . . . A healthy, perfectly adjusted human being would slide smoothly into gear, perform whatever has to be done with perfect economy of energy, then recover lost energy in a state of serene relaxation. Most human beings are not healthy or well adjusted. Their activity is full of strain and nervous tension, and their relaxation hovers on the edge of anxiety. They fail to put enough effort--enough seriousness--into their activity, and they fail to withdraw enough effort from their relaxation. Moods of serenity descend upon them--if at all--by chance; perhaps after some crisis, or in peaceful surroundings with pleasant associations. Their main trouble is that they have no idea of what can be achieved by a certain kind of mental effort. And this is perhaps the place to point out that although mystical contemplation is as old as religion, it is only in the past two centuries that it has played a major role in European culture. It was the group of writers we call the romantics who discovered that a man contemplating a waterfall or a mountain peak can suddenly feel 'godlike', as if the soul had expanded. The world is seen from a 'bird's eye view' instead of a worm's eye view: there is a sense of power, detachment, serenity. The romantics--Blake, Wordsworth, Byron, Goethe, Schiller--were the first to raise the question of whether there are 'higher ceilings of human nature'. But, lacking the concepts for analysing the problem, they left it unsolved. And the romantics in general accepted that the 'godlike moments' cannot be sustained, and certainly cannot be re-created at will. This produced the climate of despair that has continued down to our own time. (The major writers of the 20th century--Proust, Eliot, Joyce, Musil--are direct descendants of the romantics, as Edmund Wilson pointed out in Axel's Castle.) Thus it can be seen that Maslow's importance extends far beyond the field of psychology. William James had asserted that 'mystical' experiences are not mystical at all, but are a perfectly normal potential of human consciousness; but there is no mention of such experiences in Principles of Psychology (or only in passing).