A student of occultism will not need to be told that as there are seven great classes both of nature-spirits and elemental essence there must really be seven and not four Devarajahs but outside the circle of initiation little is known and less may be said of the higher three. III. ARTIFICIAL. This, the largest class of astral entities, is also much the most important to man. Being entirely his own creation, it is inter-related with him by the closest karmic bonds, and its action upon him is direct and incessant. It is an enormous inchoate mass of semi-intelligent entities, differing among themselves as human thoughts differ, and practically incapable of anything like classification or arrangement. The only division which can be usefully made is that which distinguishes between the artificial elementals made by the majority of mankind unconsciously, and those made by magicians with definite intent; while we may relegate to a third class the very small number of artificially arranged entities which are not elementals at all. 1. _Elementals formed unconsciously._ It has already been explained that the elemental essence which surrounds us on every side is in all its numberless varieties singularly susceptible to the influence of human thought. The action of the mere casual wandering thought upon it, causing it to burst into a cloud of rapidly-moving, evanescent forms, has already been described; we have now to note how it is affected when the human mind formulates a definite, purposeful thought or wish. The effect produced is of the most striking nature. The thought seizes upon the plastic essence, and moulds it instantly into a living being of appropriate form--a being which when once thus created is in no way under the control of its creator, but lives out a life of its own, the length of which is proportionate to the intensity of the thought or wish which called it into existence. It lasts, in fact, just as long as the thought-force holds it together. Most people's thoughts are so fleeting and indecisive that the elementals created by them last only a few minutes or a few hours, but an often-repeated thought or an earnest wish will form an elemental whose existence may extend to many days. Since the ordinary man's thoughts refer very largely to himself, the elementals they form remain hovering about him, and constantly tend to provoke a repetition of the idea they represent, since such repetitions, instead of forming new elementals, would strengthen the old one, and give it a fresh lease of life. A man, therefore, who frequently dwells upon one wish often forms for himself an astral attendant which, constantly fed by fresh thought, may haunt him for years, ever gaining more and more strength and influence over him; and it will easily be seen that if the desire be an evil one the effect upon his moral nature may be of the most disastrous character.