The whole mode, the whole everything is really different in man and woman. Therefore we should keep boys and girls apart, that they are pure and virgin in themselves. On mixing with one another, in becoming familiar, in being "pals," they lose their own male and female integrity. And they lose the treasure of the future, the vital sex polarity, the dynamic magic of life. For the magic and the dynamism rests on _otherness_.
For actual sex is a vital polarity. And a polarity which rouses into action, as we know, at puberty.
And how? As we know, a child lives from the great field of dynamic consciousness established between the four poles of the dynamic psyche, two great poles of sympathy, two great poles of will. The solar plexus and the lumbar ganglion, great nerve-centers below the diaphragm, act as the dynamic origin of all consciousness in man, and are immediately polarized by the other two nerve-centers, the cardiac plexus and the thoracic ganglion above the diaphragm. At these four poles the whole flow, both within the individual and from without him, of dynamic consciousness and dynamic creative relationship is centered. These four first poles constitute the first field of dynamic consciousness for the first twelve or fourteen years of the life of every child.
And then a change takes place. It takes place slowly, gradually and inevitably, utterly beyond our provision or control. The living soul is unfolding itself in another great metamorphosis.
What happens, in the biological psyche, is that deeper centers of consciousness and function come awake. Deep in the lower body the great sympathetic center, the hypogastric plexus has been acting all the time in a kind of dream-automatism, balanced by its corresponding voluntary center, the sacral ganglion. At the age of twelve these two centers begin slowly to rumble awake, with a deep reverberant force that changes the whole constitution of the life of the individual.
And as these two centers, the sympathetic center of the deeper abdomen, and the voluntary center of the loins, gradually sparkle into wakeful, _conscious_ activity, their corresponding poles are roused in the upper body. In the region of the throat and neck, the so-called cervical plexuses and the cervical ganglia dawn into activity.