ct the minds of others, producing the desired mental states in them.
In short, he may be able to produce on the Mental Plane that which
science produces on the Physical Plane--namely, "Vibrations at Will."
This power of course may be acquired only by the proper instruction,
exercises, practice, etc., the science being that of Mental
Transmutation, one of the branches of the Hermetic Art.

A little reflection on what we have said will show the student that the
Principle of Vibration underlies the wonderful phenomena of the power
manifested by the Masters and Adepts, who are able to apparently set
aside the Laws of Nature, but who, in reality, are simply using one law
against another; one principle against others; and who accomplish their
results by changing the vibrations of material objects, or forms of
energy, and thus perform what are commonly called "miracles."

As one of the old Hermetic writers has truly said: "He who understands
the Principle of Vibration, has grasped the scepter of Power."

CHAPTER X

POLARITY

"Everything is dual; everything has poles; everything
has its pair of opposites; like and unlike are the same;
opposites are identical in nature, but different in degree;
extremes meet; all truths are but half-truths; all paradoxes
may be reconciled."--The Kybalion.

The great Fourth Hermetic Principle--the Principle of Polarity embodies
the truth that all manifested things have "two sides"; "two aspects";
"two poles"; a "pair of opposites," with manifold degrees between the
two extremes. The old paradoxes, which have ever perplexed the mind of
men, are explained by an understanding of this Principle. Man has always
recognized something akin to this Principle, and has endeavored to
express it by such sayings, maxims and aphorisms as the following:
"Everything is and isn't, at the same time"; "all truths are but
half-truths"; "every truth is half-false"; "there are two sides to
everything"--"there is a reverse side to every shield," etc., etc.

The Hermetic Teachings are to the effect that the difference between
things seemingly diametrically opposed to each other is merely a matter
of degree. It teaches that "the pairs of opposites may be reconciled,"
and that "thesis and anti-thesis are identical in nature, but different
in degree"; and that the "universal reconciliation of opposites" is
effected by a recognition of this Principle of Polarity. The teachers
claim that illust