At the present time the words “occult science” are apt to arouse the most varied feelings. Upon some people they work like a magic charm, like the announcement of something to which they feel attracted by the innermost powers of their soul; to others there is in the words something repellent, calling forth contempt, derision, or a compassionate smile. By many, occult science is looked upon as a lofty goal of human effort, the crown of all other knowledge and cognition; others, who are devoting themselves with the greatest earnestness and noble love of truth to that which appears to them true science, deem occult science mere idle dreaming and fantasy, in the same category with what is called superstition. To some, occult science is like a light without which life would be valueless; to others, it represents a spiritual danger, calculated to lead astray immature minds and weak souls, while between these two extremes is to be found every possible intermediate shade of opinion. Strange feelings are awakened in one who has attained a certain impartiality of judgment in regard to occult science, its adherents and its opponents, when one sees how people, undoubtedly possessed of a genuine feeling for freedom in many matters, become intolerant when they meet with this particular line of thought. And an unprejudiced observer will scarcely fail in this case to admit that what attracts many adherents of occult science—or occultism—is nothing but the fatal craving for what is unknown and mysterious, or even vague. And he will also be ready to own that there is much cogency in the reasons put forward against what is fantastic and visionary by serious opponents of the cause in question. In fact, one who studies occult science will do well not to lose sight of the fact that the impulse toward the mysterious leads many people on a vain chase after worthless and dangerous will-o’-the-wisps. Even though the occult scientist keeps a watchful eye on all errors and vagaries on the part of adherents of his views, and on all justifiable antagonism, yet there are reasons which hold him back from the immediate defence of his own efforts and aspirations. These reasons will become apparent to any one entering more deeply into occult science. It would therefore be superfluous to discuss them here. If they were cited before the threshold of this science had been crossed, they would not suffice to convince one who, held back by irresistible repugnance, refuses to cross that threshold. But to one who effects an entry, the reasons will soon manifest themselves, with unmistakable clearness from within.