How often have the majority of people heard repeated the statement that their Deity (called by many names) was "All in All" and how little have they suspected the inner occult truth concealed by these carelessly uttered words? The commonly used expression is a survival of the ancient Hermetic Maxim quoted above. As the Kybalion says: "To him who truly understands this truth, hath come great knowledge." And, this being so, let us seek this truth, the understanding of which means so much. In this statement of truth--this Hermetic Maxim--is concealed one of the greatest philosophical, scientific and religious truths. We have given you the Hermetic Teaching regarding the Mental Nature of the Universe--the truth that "the Universe is Mental--held in the Mind of THE ALL." As the Kybalion says, in the passage quoted above: "All is in THE ALL." But note also the co-related statement, that: "It is equally true that THE ALL is in ALL." This apparently contradictory statement is reconcilable under the Law of Paradox. It is, moreover, an exact Hermetic statement of the relations existing between THE ALL and its Mental Universe. We have seen how "All is in THE ALL"--now let us examine the other aspect of the subject. The Hermetic Teachings are to the effect that THE ALL is Imminent in ("remaining within; inherent; abiding within") its Universe, and in every part, particle, unit, or combination, within the Universe. This statement is usually illustrated by the Teachers by a reference to the Principle of Correspondence. The Teacher instructs the student to form a Mental Image of something, a person, an idea, something having a mental form, the favorite example being that of the author or dramatist forming an idea of his characters; or a painter or sculptor forming an image of an ideal that he wishes to express by his art. In each case, the student will find that while the image has its existence, and being, solely within his own mind, yet he, the student, author, dramatist, painter, or sculptor, is, in a sense, immanent in; remaining within; or abiding within, the mental image also. In other words, the entire virtue, life, spirit, of reality in the mental image is derived from the "immanent mind" of the thinker. Consider this for a moment, until the idea is grasped.