These spirits, in a state of separate existence, being admitted to exist, are not, it may be supposed, indifferent to the affairs of mortality, perhaps not incapable of influencing them. It is true that, in a more advanced state of society, the philosopher may challenge the possibility of a separate appearance of a disembodied spirit, unless in the case of a direct miracle, to which, being a suspension of the laws of nature, directly wrought by the Maker of these laws, for some express purpose, no bound or restraint can possibly be assigned. But under this necessary limitation and exception, philosophers might plausibly argue that, when the soul is divorced from the body, it loses all those qualities which made it, when clothed with a mortal shape, obvious to the organs of its fellow-men. The abstract idea of a spirit certainly implies that it has neither substance, form, shape, voice, or anything which can render its presence visible or sensible to human faculties. But these sceptic doubts of philosophers on the possibility of the appearance of such separated spirits, do not arise till a certain degree of information has dawned upon a country, and even then only reach a very small proportion of reflecting and better-informed members of society. To the multitude, the indubitable fact, that so many millions of spirits exist around and even amongst us, seems sufficient to support the belief that they are, in certain instances at least, by some means or other, able to communicate with the world of humanity. The more numerous part of mankind cannot form in their mind the idea of the spirit of the deceased existing, without possessing or having the power to assume the appearance which their acquaintance bore during his life, and do not push their researches beyond this point. Enthusiastic feelings of an impressive and solemn nature occur both in private and public life, which seem to add ocular testimony to an intercourse betwixt earth and the world beyond it. For example, the son who has been lately deprived of his father feels a sudden crisis approach, in which he is anxious to have recourse to his sagacious advice--or a bereaved husband earnestly desires again to behold the form of which the grave has deprived him for ever--or, to use a darker yet very common instance, the wretched man who has dipped his hand in his fellow-creature's blood, is haunted by the apprehension that the phantom of the slain stands by the bedside of his murderer. In all or any of these cases, who shall doubt that imagination, favoured by circumstances, has power to summon up to the organ of sight, spectres which only exist in the mind of those by whom their apparition seems to be witnessed?