ALL, in which Mind we "live and move and have our being." This
Principle, by establishing the Mental Nature of the Universe, easily
explains all of the varied mental and psychic phenomena that occupy such
a large portion of the public attention, and which, without such
explanation, are non-understandable and defy scientific treatment. An
understanding of this great Hermetic Principle of Mentalism enables the
individual to readily grasp the laws of the Mental Universe, and to
apply the same to his well-being and advancement. The Hermetic Student
is enabled to apply intelligently the great Mental Laws, instead of
using them in a haphazard manner. With the Master-Key in his possession,
the student may unlock the many doors of the mental and psychic temple
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 today 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.

2. 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 the grasping of this Principle gives one the means
of solving many a dark paradox, and hidden secret of Nature. There are
planes beyond our knowing, but when we apply the Principle of