which contains within its tiny compass all the elements that make up the
ocean, and that to know perfectly the drop is to know perfectly the
ocean, then we begin to see what such a power really means.

Many in the Western world who have attained great results in the
intellectual and scientific fields of endeavor, have developed these
powers more or less unconsciously. Many great inventors are practical
Yogis, although they do not realize the source of their power. Anyone who
is familiar with the personal mental characteristics of Edison, will see
that he follows some of the _Raja Yoga_ methods, and that Concentration
is one of his strongest weapons. And from all reports, Prof. Elmer Gates,
of Washington, D.C., whose mind has unfolded many wonderful discoveries
and inventions, is also a practical Yogi although he may repudiate the
assertion vigorously, and may not have familiarized himself with the
principles of this science, which he has "dropped into" unconsciously.
Those who have reported upon Prof. Gates' methods, say that he fairly
"digs out" the inventions and discoveries from his mind, after going
into seclusion and practicing concentration, and what is known as the
Mental Vision.

But we have given you enough of theory for one lesson, and must begin to
give you directions whereby you may aid yourself in developing these
latent powers and unfolding these dormant energies. You will notice that
in this series we first tell you something about the theory, and then
proceed to give you "something to do." This is the true Yogi method as
followed and practiced by their best teachers. Too much theory is
tiresome, and sings the mind to sleep, while too much exercise tires one,
and does not give the inquiring part of his mind the necessary food. To
combine both in suitable proportions is the better plan, and one that we
aim to follow.