Keyork Arabian might spend hours in giving her learned explanations of what she did, but he never convinced her.  Possibly he was not convinced himself, and he still hesitated, perhaps, between the two great theories advanced to explain the phenomena of hypnotism.  He had told her that he considered her influence to be purely a moral one, exerted by means of language and supported by her extraordinary concentrated will.  But it did not follow that he believed what he told her, and it was not improbable that he might have his own doubts on the subject—­doubts which Unorna was not slow to suspect, and which destroyed for her the whole force of his reasoning.  She fell back upon a sort of grossly unreasonable mysticism, combined with a blind belief in those hidden natural forces and secret virtues of privileged objects, which formed the nucleus of mediaeval scientific research.  The field is a fertile one for the imagination and possesses a strange attraction for certain minds.  There are men alive in our own time to whom the transmutation of metals does not seem an impossibility, nor the brewing of the elixir of life a matter to be scoffed at as a matter of course.  The world is full of people who, in their inmost selves, put faith in the latent qualities of precious stones and amulets, who believe their fortunes, their happiness, and their lives to be directly influenced by some trifling object which they have always upon them.  We do not know enough to state with assurance that the constant handling of any particular metal, or gem, may not produce a real and invariable corresponding effect upon the nerves.  But we do know most positively that, when the belief in such talismans is once firmly established, the moral influence they exert upon men through the imagination is enormous.  From this condition of mind to that in which auguries are drawn from outward and apparently accidental circumstances, is but a step.  If Keyork Arabian inclined to the psychic rather than to the physical school in his view of Unorna’s witchcraft and in his study of hypnotism in general, his opinion resulted naturally from his great knowledge of mankind, and of the unacknowledged, often unsuspected, convictions which in reality direct mankind’s activity.  It was this experience, too, and the certainty to which it had led him, that put him beyond the reach of Unorna’s power so long as he chose not to yield himself to her will.  Her position was in reality diametrically opposed to his, and although he repeated his reasonings to her from time to time, he was quite indifferent to the nature of her views, and never gave himself any real trouble to make her change them.  The important point was that she should not lose anything of the gifts she possessed, and Keyork was wise enough to see that the exercise of them depended in a great measure upon her own conviction regarding their exceptional nature.