The fine streams or waves of energy constantly being emanated by all objects, which are invisible to the naked physical eye, are registered and recorded by the Astral Sense of Sight. The Psychomancer even by means of the comparatively elementary power of Simple Psychomancy is able to see what is going on in an adjoining room, or other nearby place; to read the contents of a sealed letter; to describe the contents of a locked, steel book; or to read a chosen passage in a closed book. To the developed and trained Psychomancer, when he concentrates his power, the solid ground over which he is walking, becomes transparent, and he is able to see down into its depths to a considerable distance. In this way he may see living underground creatures at work, and play; and to discover veins of mineral, coal, etc., or underground streams of water. In these cases the Clairvoyant ~does not travel~ in the Astral, but merely receives and perceives the subtle vibrations or streams of fine energy constantly being emanated by the objects. Some Clairvoyants have developed certain other less common faculties of Astral Sight, which give the "telescopic" and "microscopic" vision in these cases, in addition to the main faculty of "seeing" things through solid coverings. The question will naturally arise in the mind of the student, whether there is any limit to the depths open to the Astral Sight of the Psychomancer (in this phase of the phenomena), as for instance when he is looking into the solid earth. It may be urged that as objects at immense distances underground emanate rays just as truly as do objects nearer the surface, then there should be no difference in the power of vision. Answering this question we would say that the same objection and obstacle arises in this case, as in the corresponding physical phenomena, such as the X Rays. While a far distant object emits rays just as well as a nearby one, still there is a loss of energy according to distance, and the Astral Sense, like the Physical Sense, fails to clearly register after a certain distance is attained. This distance varies in the case of different persons using their Astral Vision, just as it does in the case of the different degrees of eyesight possessed by various persons. And then again, it must not be supposed that the earth becomes as clear as glass to the Astral Vision. On the contrary it presents a similar appearance to that obtained when one is seeing objects through water or mist, with the physical eye. One can see quite a way through water or mist with the physical eye, but after a certain distance the impressions grow dim, and finally fade from view. Of course in the case of the erecting of the Astral Tube better results may be obtained, but this phenomena belongs to the class of Space Psychomancy.