To the Benevolent Creative Powers, then, we owe everything that tends to man's happiness (and what is more necessary to real happiness than temperance and morality), whilst to the Evil Creative Powers are due all diseases, crimes, and cruelties--everything, in fact, that is injurious to health and responsible for suffering, either mental or physical.
I think I have elsewhere stated in my definition of Benevolent Elementals that they would seem to be identical with the good fairies of our childhood's days, and with the angels in the Bible. In any case they are employed by the Higher Occult Powers friendly to man, and are always with us, trying to keep us in the paths of virtue, and guarding us from physical danger.
Vice Elementals, on the other hand, are employed by the Higher Occult Powers inimical to man, and are also always with us, trying to persuade us to do everything that harms us mentally, morally, and physically, and that, in a like manner, indirectly injures our neighbours.
Vice Elementals appear in every variety of form, from beautiful, captivating women and handsome, insinuating men, to the grossest and most terrifying caricatures of both man and beast; for example, pig-headed men, monstrous dogs (such as "The Mauthe Dog" of Peel Castle, Isle of Man; the Kirk-grim of Scandinavia, which is sometimes a dog and sometimes a horse or pig); the Gwyllgi of Wales; huge bears (such as the famous "bear" ghost of the Tower of London), and many other mal-shaped forms of man and beast.
Whereas, however, the more prepossessing type of this class of Elemental roams everywhere, the more terrible are usually confined to places where crimes have been committed and impure thoughts conceived.
These Elementals, which I have already described, are merely survivals of experiments at life, prior to the selection of any definite forms of man and beast; they were created by the neutral Powers, and their attitude to man (whom they shun as much as possible), though spiteful and mischievous, is prompted by nothing actually sinister.
These Phantasms are the Agents of the Evil Creative Powers. Always hideous in appearance, they create all manner of malignant bacilli, and are responsible for all diseases and illness, which they often delight in predicting.