ple of knowledge, and enter the same freely and intelligently. This Principle explains the true nature of "Energy," "Power," and "Matter," and why and how all these are subordinate to the Mastery of Mind. One of the old Hermetic Masters wrote, long ages ago: "He who grasps the truth of the Mental Nature of the Universe is well advanced on The Path to Mastery." And these words are as true to-day as at the time they were first written. Without this Master-Key, Mastery is impossible, and the student knocks in vain at the many doors of The Temple.
II. THE PRINCIPLE OF CORRESPONDENCE.
"As above, so below; as below, so above."—The Kybalion.
This Principle embodies the truth that there is always a Correspondence between the laws and phenomena of the various planes of Being and Life. The old Hermetic axiom ran in these words: "As above, so below; as below, so above." And
