of vibrations constitute the degrees of measurement on the Scale of Vibrations—­in other words the degrees of the Fourth Dimension.  And these degrees form what occultists call “Planes” The higher the degree of rate of vibration, the higher the plane, and the higher the manifestation of Life occupying that plane.  So that while a plane is not “a place,” nor yet “a state or condition,” yet it possesses qualities common to both.  We shall have more to say regarding the subject of the scale of Vibrations in our next lessons, in which we shall consider the Hermetic Principle of Vibration.

You will kindly remember, however, that the Three Great Planes are not actual divisions of the phenomena of the Universe, but merely arbitrary terms used by the Hermetists in order to aid in the thought and study of the various degrees and Forms of universal activity and life.  The atom of matter, the unit of force, the mind of man, and the being of the arch -angel are all but degrees in one scale, and all fundamentally the same, the difference between solely a matter of degree, and rate of vibration—­all are creations of the all, and have their existence solely within the Infinite Mind of the all.

The Hermetists sub-divide each of the Three Great Planes into Seven Minor Planes, and each of these latter are also sub-divided into seven sub-planes, all divisions being more or less arbitrary, shading into each other, and adopted merely for convenience of scientific study and thought.

The Great Physical Plane, and its Seven Minor Planes, is that division of the phenomena of the Universe which includes all that relates to physics, or material things, forces, and manifestations.  It includes all forms of that which we call Matter, and all forms of that which we call Energy or Force.  But you must remember that the Hermetic Philosophy does not recognize Matter as a thing in itself, or as having a separate existence even in the Mind of the all.  The Teachings are that Matter is but a form of Energy—.that is, Energy at a low rate of vibrations of a certain kind.  And accordingly the Hermetists classify Matter under the head of Energy, and give to it three of the Seven Minor Planes of the Great Physical Plane.

These Seven Minor Physical Planes are as follows: 

1.  The Plane of Matter (A) 2.  The Plane of Matter (B) 3.  The Plane of Matter (C) 4.  The Plane of Ethereal Substance 5.  The Plane of Energy (A) 6.  The Plane of Energy (B) 7.  The Plane of Energy (C)

The Plane of Matter (A) comprises the forms of Matter in its form of solids, liquids, and gases, as generally recognized by the text-books on physics.  The Plane of Matter (B) comprises certain higher and more subtle forms of Matter of the existence of which modern science is but now recognizing, the phenomena of Radiant Matter, in its phases of radium, etc., belonging to the lower sub-division of this Minor Plane.