The fact, however, remains that the intuition works most freely in that direction in which we most habitually concentrate our thought; and in practice it will be found that the best way to cultivate the intuition in any particular direction is to meditate upon the _abstract principles_ of that particular class of subjects rather than only to consider particular cases. Perhaps the reason is that particular cases have to do with specific phenomena, that is with the law working under certain limiting conditions, whereas the _principles_ of the law are not limited by local conditions, and so habitual meditation on _them_ sets our intuition free to range in an infinitude where the conception of antecedent conditions does not limit it. Anyway, whatever may be the theoretical explanation, you will find that the clear grasp of abstract principles in any direction has a wonderfully quickening effect upon the intuition in that particular direction. The importance of recognizing our power of thus giving direction to the intuition cannot be exaggerated, for if the mind is attuned to sympathy with the highest phases of spirit this power opens the door to limitless possibilities of knowledge. In its highest workings intuition becomes inspiration, and certain great records of fundamental truths and supreme mysteries which have come down to us from thousands of generations bequeathed by deep thinkers of old can only be accounted for on the supposition that their earnest thought on the Originating Spirit, coupled with a reverent worship of It, opened the door, through their intuitive faculty, to the most sublime inspirations regarding the supreme truths of the universe both with respect to the evolution of the cosmos and to the evolution of the individual. Among such records explanatory of the supreme mysteries three stand out pre-eminent, all bearing witness to the same ONE Truth, and each throwing light upon the other; and these three are the Bible, the Great Pyramid, and the Pack of Cards--a curious combination some will think, but I hope in another volume of this series to be able to justify my present statement. I allude to these three records here because the unity of principle which they exhibit, notwithstanding their wide divergence of method, affords a standing proof that the direction taken by the intuition is largely determined by the will of the individual opening the mind in that particular direction.