If, however, an astral entity constantly works through a medium, these finer astral senses may gradually be so hoarsened as to become insensible to the higher grades of matter on their own plane, and to mclude in their purview the physical world as we see it instead ; but only the trained visitor from this life, who is fully conscious on both planes, can depend upon seeing both clearly and simultaneously. Be it understood, then.‘that the complexity exists, and that only when it is fully perceived and scientifically unravelled is there perfect security against deception or mistake. For the seventh or lowest subdivision of the astral plane also, this physical world of ours may be said to be the background, though what is seen is only a distorted and partial view of it, since all that is light and *good and beautiful seems invisible. It was thus described four thousand years ago in the Egyptian papyrus of the Scriba Ani:" What manner of pl3.ce is this unto