They believe that they gain another when they say or might say that it is still possible that the spirits stimulate us to realize the events which they foretell without themselves clearly perceiving them in the future. After announcing, for instance, that on a certain day we shall go to a certain place and do a certain thing, they urge us irresistibly to proceed to the spot named and there to perform the act prophesied. But this theory, like those of self-suggestion and telepathy, would explain only a few phenomena and would leave in obscurity all those cases, infinitely more numerous because they make up almost the whole of our future, in which either chance intervenes or some event in no way dependent upon our will or the spirit's, unless indeed we suppose that the latter possesses an omniscience and an omnipotence which take us back to the original mysteries of the problem. Besides, in the gloomy regions of precognition, it is almost always a matter of anticipating a misfortune and very rarely, if ever, of meeting with a pleasure or a joy. We should therefore have to admit that the spirits which drag me to the fatal place and compel me to do the act that will have tragic consequences are deliberately hostile to me and find diversion only in the spectacle of my suffering. What could those spirits be, from what evil world would they arise and how should we explain why our brothers and friends of yesterday, after passing through the august and peace-bestowing gates of death, suddenly become transformed into crafty and malevolent demons? Can the great spiritual kingdom, in which all passions born of the flesh should be stilled, be but a dismal abode of hatred, spite and envy? It will perhaps be said that they lead us into misfortune in order to purify us; but this brings us to religious theories which it is not our intention to examine. 12