Man's love for the supernatural, which is one of the most natural things about him, was never more marked than now. Man's imagination, ever vaster than his environment, overleaps the barriers of time and space and claims all worlds as eminent domain, so that literature, which he has the power to create, as he cannot create his material surroundings, possesses a dramatic intensity and an epic sweep unknown in actuality. Literature shows what humanity really is and longs to be. Man, feeling belittled by his petty round of uninspiring days, longs for a larger life. He yearns for traffic with immortal beings that can augment his wisdom, that can bring comfort to his soul dismayed and bewildered by life. He reaches out for a power beyond his puny strength. Aware how relentlessly time ticks away his little hour, he craves companionship with the eternal spirits. Ignorant of what lies before him in the life to which he speeds so fast, he would take counsel of those who know, would ask about the customs of the country where presently he will be a citizen. He feels so terribly alone that he cries out like a child in the dark for supermortal companionship. Literature, which is both a cause and an effect of man's interest in the supernatural as in anything else, reflects his longings and records his cries. And when we read the imaginings of the different generations, we find that the spirit of the dead is represented almost everywhere. Before poetry and fiction were recorded, there were singers and story-tellers by the fire to give to their listeners the thrill that comes from art. And what thrill is comparable to that which comes from contact with the supermortal? The earliest literature relates the appearance of the spirits of those who have died as coming back to comfort or to take vengeance on the living, but always as sentient, intelligent, and with an interest in the earth they have left. All through the centuries the wraith has survived in literature, has flitted pallidly across the pages of poetry, story and play, with a sad wistfulness, a forlorn dignity. A double relation exists between the literature and the records of the Psychical Research Society. Lacy Collison-Morley, in his _Greek and Roman Ghost Stories_, speaks of the similarity between ancient tales of spirits and records of recent instances. "There are in the Fourth Book of _Gregory the Great's Dialogues_ a number of stories of the passing of souls which are curiously like some of those collected by the Psychical Research Society," he says. Possibly human personality is much the same in all lands and all times.