dimension, in a scale subject to
measurement." Somewhat paradoxical, is it not? But let us examine the
matter. A "dimension," you know, is "a measure in a straight line,
relating to measure," etc. The ordinary dimensions of space are length,
breadth, and height, or perhaps length, breadth, height, thickness or
circumference. But there is another dimension of "created things" or
"measure in a straight line," known to occultists, and to scientists as
well, although the latter have not as yet applied the term "dimension"
to it--and this new dimension, which, by the way, is the much speculated
-about "Fourth Dimension," is the standard used in determining the
degrees or "planes."

This Fourth Dimension may be called "The Dimension of Vibration" It is a
fact well known to modern science, as well as to the Hermetists who have
embodied the truth in their "Third Hermetic Principle," that "everything
is in motion; everything vibrates; nothing is at rest." From the
highest manifestation, to the lowest, everything and all things Vibrate.
Not only do they vibrate at different rates of motion, but as in
different directions and in a different manner. The degrees of the rate
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,