EVOLUTION ON THEEARTH 269
developed—in the latter part of the Lemurian Epoch—the
body became upright and the time had come when the Ego
could begin to dwell within the body and control it.
But to dwell within is not the end and aim of evolution.
It is simply a means by which the Ego may better express
itself through its instrument, that it may manifest in the
Physical World. To that end the sense organs, the larynx,
and above all, a brain, must be built and perfected.
During the early part of the Hyperborean Epoch, while
the Earth was still united with the Sun, the solar forces
supplied man with all the sustenance he needed and he
unconsciously radiated the surplus for the purpose of
propagation.
When the Ego entered into possession of its vehicles it
beca me necessary to us e part of this force for the building of
the brain and larynx, which was originally a part of the
creative organ. The larynx was built while the dense body
was yet bent together in the bag-like shape already
described, which is still the form of the human embryo. As
the dense body straightened and became upright, part of the
creative organ remained with the upper part of the dense
body and later became the larynx.
Thus the dual creative force which had hitherto worked
in only one direction, for the purpose of creating another
being, became divided. One part was directed upward to
build the brain and larynx, by means of which the Ego was
to become capable of thinking and communicating thoughts
to other beings.
As a result of this change only one part of the force
essential in the creation of another being was available to
one individual, hence it became necessary for each
individual to seek the co-operation of another, who