What is impossible is to be a transcendentalist "all 'round." In that case there would be nothing left to transcend; the civil war of the mind would have ended in the extermination of all parties. The art of mysticism is to be mystical in spots and to aim the heavy guns of your transcendental philosophy against those realities or those ideas which you find particularly galling. Planted on your dearest dogma, on your most precious postulate, you may then transcend everything else to your heart's content. You may say with an air of enlightened profundity that nothing is "really" right or wrong, because in Nature all things are regular and necessary, and God cannot act for purposes as if his will were not already accomplished; your mysticism in religion and morals is kept standing, as it were, by the stiff backing which is furnished by your materialistic cosmology. Or you may say with a tone of devout rapture that all sights and sounds are direct messages from Divine Providence to the soul, without any objects "really" existing in space; your mysticism about the world of perception and scientific inference is sustained by the naive theological dogmas which you substitute for the conceptions of common sense. Yet among these partialities and blind denials a man's positive insight seems to thrive, and he fortifies and concentrates himself on his chosen ground by his arbitrary exclusions. The patient art of rationalizing the various sides of life, the observational as well as the moral, without confusing them, is an art apparently seldom given to the haste and pugnacity of philosophers.
Thus mysticism, although a principle of dissolution, carries with it the safeguard that it can never be consistently applied. We reach it only in exceptional moments of intuition, from which we descend to our pots and pans with habits and instincts virtually unimpaired. Life goes on; virtues and affections endure, none the worse, the mystic feels, for that slight film of unreality which envelops them in a mind not unacquainted with ecstasy. And although mysticism, left free to express itself, can have no other goal than Nirvana, yet moderately indulged in and duly inhibited by a residuum of conventional sanity, it serves to give a touch of strangeness and elevation to the character and to suggest superhuman gifts. It is not, however, in the least superhuman. It is hardly even abnormal, being only an exaggeration of a rational interest in the highest abstractions. The divine, the universal, the absolute, even the One, are legitimate conceptions. They are terms of human thought having as such a meaning in language and a place in speculation. Those who live in the mind, whose passions are only audible in the keen overtones of dialectic, are no doubt exalted and privileged natures, choosing a better part which should not be taken from them. So the poet and the mathematician have their spheres of abstract and delicate labour, in which a liberal legislator would not disturb them. Trouble only arises when the dialectician represents his rational dreams as knowledge of existences, and the mystic his excusable raptures as the only way of life. Poets and mathematicians do not imagine that their pursuits raise them above human limitations and are no part of human life, but rather its only goal and justification. Such a pretension would be regarded as madness in the mathematician or the poet; and is not the mystic as miserably a man? Is he not embodying, at his best, the analytic power of a logician, or the imagination of an enthusiast, and, at his worst, the lowest and most obscure passions of human nature?