It has always been contended by a peculiarly-gifted group of individuals known as "clairvoyants," that we possess a "spiritual body"--just as we possess a physical body--of exactly the same shape and appearance; and that we inhabit this body at death. It is further contended that all our physical senses find their exact counterpart in this "etheric double"; there is a physical eye and a spiritual eye; a physical ear and a spiritual ear, etc. With the spiritual eye we see "clairvoyantly"; with the spiritual ear we hear "clairaudiently," and so forth. I shall not discuss the possibility of such a body, except to say that there is now a mass of evidence in its favour. Assuming it to exist--assuming it to be the exact counterpart of the physical body--then it too possesses a brain; and it too must pulsate and vibrate just as the physical brain does, when accompanying thought. Now this inner body may be the _vehicle of thought_. It may possess "centres" whose normal office is to send and receive telepathic messages. One "etheric centre" may thus act upon another "etheric centre" directly--only indirectly upon the physical brain cells. The action would thus be dynamic, yet psychical; physical in a sense, yet not physical as we conceive it. Philosophy tells us that the table we see (the _phenomenon_) is not the "real" table (the _noumenon_)--the reality behind; but, if we knock the two tables together, the _noumena_ touch, just as the phenomenal tables do; only we have no means of knowing or directly seeing it. Thus there is a sort of physical communication of a spiritual thing. Those who have entered rooms of a certain character have often sensed their "psychic atmosphere." This is a sort of duplicate or replica of the physical atmosphere, yet it is different from it. The whole subject is so subtle that one cannot follow it unless he has had some experience or some knowledge of these things. The process cannot be explained in clear-cut fashion--any more than mediums can tell the source of their thoughts and impressions. A little intuition is needed in order to grasp the problem and comprehend its difficulties.