If we add, that such a vision may take place in the course of one of those lively dreams in which the patient, except in respect to the single subject of one strong impression, is, or seems, sensible of the real particulars of the scene around him, a state of slumber which often occurs; if he is so far conscious, for example, as to know that he is lying on his own bed, and surrounded by his own familiar furniture at the time when the supposed apparition is manifested, it becomes almost in vain to argue with the visionary against the reality of his dream, since the spectre, though itself purely fanciful, is inserted amidst so many circumstances which he feels must be true beyond the reach of doubt or question. That which is undeniably certain becomes, in a manner, a warrant for the reality of the appearance to which doubt would have been otherwise attached. And if any event, such as the death of the person dreamt of, chances to take place, so as to correspond with the nature and the time of the apparition, the coincidence, though one which must be frequent, since our dreams usually refer to the accomplishment of that which haunts our minds when awake, and often presage the most probable events, seems perfect, and the chain of circumstances touching the evidence may not unreasonably be considered as complete. Such a concatenation, we repeat, must frequently take place, when it is considered of what stuff dreams are made--how naturally they turn upon those who occupy our mind while awake, and, when a soldier is exposed to death in battle, when a sailor is incurring the dangers of the sea, when a beloved wife or relative is attacked by disease, how readily our sleeping imagination rushes to the very point of alarm, which when waking it had shuddered to anticipate. The number of instances in which such lively dreams have been quoted, and both asserted and received as spiritual communications, is very great at all periods; in ignorant times, where the natural cause of dreaming is misapprehended and confused with an idea of mysticism, it is much greater. Yet, perhaps, considering the many thousands of dreams which must, night after night, pass through the imagination of individuals, the number of coincidences between the vision and real event are fewer and less remarkable than a fair calculation of chances would warrant us to expect. But in countries where such presaging dreams are subjects of attention, the number of those which seemed to be coupled with the corresponding issue, is large enough to spread a very general belief of a positive communication betwixt the living and the dead.