Closely akin to these visions are those in which, it is reported, journeys have been made through space on a magic carpet--as in the _Arabian Nights_--or merely at the wish or command of some fairy or magician. Frequently, in such cases, it is reported that a vision is seen at the other end of the journey, coinciding with reality. It may be that the princess is, at that moment, being captured by a hideous giant; or that her lover is in great danger of losing his life. These visions have stirred the recipient into action, the result being that he or she arrives in the nick of time to prevent some fearful catastrophe. Such visions, too, have foundation in fact. There are many cases in which distant scenes have been visited in sleep, and places accurately remembered--the seer never having visited that locality in his life. Very much the same has happened in hypnotic trance, and even occasionally in the waking state, spontaneously. This is a species of clairvoyant vision; operative either during sleep, hypnotic trance, or daydream; and while it accurately represents scenes transpiring at a distance, here too, it will be noted, there is no corporeal transition--only mental adjustment from one scene of activity to another. Yet the subject remains under the distinct impression that he has been there in person, and actually visited the spot indicated. The Sleeping Beauty is an example of a story, typical of many, which illustrates the tradition that on certain occasions persons have passed into a sleep-state in which they have remained for long periods of time without apparent injury. While we must assume that the periods over which this sleep-state extended have been greatly overdrawn, the reported cases of hypnotic trance, and of voluntary interment, among the Hindus and elsewhere, lend probability to these stories, because of the fact that long periods of trance have been undergone by various individuals--who awakened from these states in apparently perfect health, and none the worse for their remarkable experience. Several spontaneous cases have been reported quite recently, in which the subject has passed several months, or even a year or more, in a sleep-state--awaking every few days or weeks, speaking a few words, taking perhaps a little nourishment, and then lapsing into oblivion! The older cases of extended sleep thus find a close parallel in the newer cases.