COOPERATIONrespectively, and, speaking in a general way, we may assign
the frontal portion of the brain to the former, and the pos-
terior portion to the latter, while the intermediate portion
partakes of the character of both.
The intuitional faculty has its correspondence in the
upper area of the brain, situated between the frontal and
the posterior portions, and, physiologically speaking, it is
here that intuitive ideas find entrance. These, at first, are
more or less unformed and generalized in character but are,
nevertheless, perceived by the conscious mind; otherwise,
we should not be aware of them at all. Then the effort of
Nature is to bring these ideas into more definite and usable
shape, so the conscious mind lays hold on them and induces
a corresponding vibratory current in the voluntary system
of nerves, and this in turn induces a similar current in the
involuntary system, thus handing the idea over to the subjective
mind. The vibratory current which had first descended from
the apex of the brain to the frontal brain and thus through
the voluntary system to the solar plexus is now reversed
and ascends from the solar plexus through the sympathetic
system to the posterior brain, this return current indicating
the action of the subjective mind.
If we were to remove the surface portion of the apex of
the brain we should find immediately below it the shining
belt of brain substance called the "corpus callosum." This
is the point oj union between the subjective and objective) and, as
the current returns from the solar plexus to this point, it
is restored to the objective portion of the brain in a fresh
form which it has acqUired by the silent alchemy oj the subjective
mind. Thus the conception which was at first only vaguely
recognized is restored to the objective mind in a definite and
workable form, and then the objective mind, acting through
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