TRANSFUSION OF BLOOD 187
also beginning to geometrize, and naturally we are
starting on the substance where we, the human spirits,
the Egos, have the greatest power, namely, in our
blood.
When the blood comes through the arteries, which
are deep in the body, it is a gas; but loss of heat nearer
the surface of the body causes it to partially condense,
and in that substance the Ego is learning to form
mineral crystals. In the Jupiter Period we shall learn to
invest them with a low form of vitality and set them
out from ourselves as plant-like structures. In the
Venus Period we shall be able to infuse desire into
them and make them like animals. Finally, in the
Vulcan Period, we shall give them a mind and rule
over them as race spirits.
At the present time we are at the very beginning of
this individualization of our blood. Therefore it is
possible at present to transfuse blood from one human
being to another, but the day is near at hand when that
will be impossible. The blood of a white man will kill
all who stand lower and the blood of an advanced
person will poison the less cultured. The child at
present receives its supply of blood from the parents,
stored in the thymus gland, for the years of childhood.
But the time will come when the Ego will be too far
individualized to function in blood not generated by
itself. Then the present mode of generation will have
to be superseded by another whereby the Ego may
create its own vehicle without the help of parents.