Sometimes we seem to see our subliminal perceptions and faculties acting truly in unity, truly as a Self;—co-ordinated into some harmonious "inspiration of genius," or some profound and reasonable hypnotic self-reformation, or some far-reaching supernormal achievement of clairvoyant vision or of self-projection into a spiritual world. Whatever of subliminal personality is thus acting corresponds with the highest-level centres of supraliminal life. At such moments the subliminal represents (as I believe) most nearly what will become the surviving Self.
But it seems that this degree of clarity, of integration, cannot be long preserved. Much oftener we find the subliminal perceptions and faculties acting in less co-ordinated, less coherent ways. We have products which, while containing traces of some faculty beyond our common scope, involve, nevertheless, something as random and meaningless as the discharge of the uncontrolled middle-level centres of arms and legs in the epileptic fit. We get, in short, a series of phenomena which the term dream-like seems best to describe.
In the realm of genius,—of uprushes of thought and feeling fused beneath the conscious threshold into artistic shape,—we get no longer masterpieces but half-insanities,—not the Sistine Madonna, but Wiertz's Vision of the Guillotined Head; not Kubla Khan, but the disordered opium dream. Throughout all the work of William Blake (I should say) we see the subliminal self flashing for moments into unity, then smouldering again in a lurid and scattered glow.
In the realm of hypnotism, again, we sink from the reasonable self-suggestion to the "platform experiments,"—the smelling of ammonia, the eating of tallow candles;—all the tricks which show a profound control, but not a wise control, over the arcana of organic life. I speak, of course, of the subject's own control over his organism; for in the last resort it is he and not his hypnotiser who really exercises that directive power. And I compare these tricks of middle-level subliminal centres to the powerful yet irrational control which the middle-level centres ruling the epileptic's arms and legs exercise over his muscles in the violence of the epileptic attack.
And so again with the automatisms which are, one may say, the subliminal self's peculiar province. Automatic script, for instance, may represent highest-level subliminal centres, even when no extraneous spirit, but the automatist's own mind alone, is concerned. It will then give us true telepathic messages, or perhaps messages of high moral import, surpassing the automatist's conscious powers. But much oftener the automatic script is regulated by what I have called middle-level subliminal centres only;—and then, though we may have scraps of supernormal intelligence, we have confusion and incoherence as well. We have the falsity which the disgusted automatist is sometimes fain to ascribe to a devil; though it is in reality not a devil, but a dream.
And hence again, just as the epileptic sinks lower and lower in the fit,—from the incoordinated movements of the limbs down to the mere stertorous breathing of coma,—so do these incoherent automatisms sink down at last, through the utterances and drawings of the degenerate and the paranoiac,—through mere fragmentary dreams, or vague impersonal bewilderment,—into the minimum psychical concomitant, whatever that be, which must coexist with brain-circulation.
Such is the apparent parallelism; but of course no knowledge of a hierarchy of the familiar forms of nervous action can really explain to us the mysterious fluctuations of subliminal power.
When we speak of the highest-level and other centres which govern our supraliminal being, and which are fitted to direct this planetary life in a material world, we can to some extent point out actual brain-centres whose action enables us to meet those needs. What are the needs of our cosmic life we do not know; nor can we indicate any point in our organism (as in the "solar plexus," or the like), which is adapted to meet them. We cannot even either affirm or deny that such spiritual life as we maintain while incarnated in this material envelope involves any physical concomitants at all.
For my part, I feel forced to fall back upon the old-world conception of a soul which exercises an imperfect and fluctuating control over the organism; and exercises that control, I would add, along two main channels, only partly coincident—that of ordinary consciousness, adapted to the maintenance and guidance of earth-life; and that of subliminal consciousness, adapted to the maintenance of our larger spiritual life during our confinement in the flesh.
We men, therefore, clausi tenebris et carcere cæco, can sometimes widen, as we must sometimes narrow, our outlook on the reality of things. In mania or epilepsy we lose control even of those highest-level supraliminal centres on which our rational earth-life depends. But through automatism and in trance and allied states we draw into supraliminal life some rivulet from the undercurrent stream. If the subliminal centres which we thus impress into our waking service correspond to the middle-level only, they may bring to us merely error and confusion; if they correspond to the highest-level, they may introduce us to previously unimagined truth.