vivid was the impression that we could not
tell whether it or ourselves were in motion. All was bustle and
life, but not a sound broke the oppressive stillness. It was
noiseless as a dream. It was a phantom picture.... The scene faded
away, and Miss H---- placed herself in turn by the side of the
dervish."

We thus see that expectancy and suggestion alone may induce sufficiently
abnormal mental states to ensure the occurrence of such
images--especially in a mind previously wrought by imagination,
superstition, love, or any emotion tending to bring about its temporary
lack of balance. The visions induced would, of course, be mental, and
not physical, in their character; they would nevertheless appear just as
real to the onlooker.

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 great