It will be readily understood that superphysical forces and the methods of managing them are not subjects about which much can be written for publication at present, though there is reason to suppose that it may not be very long before at any rate some applications of one or two of them come to be known to the world at large: but it may perhaps be possible, without transgressing the limits of the permissible, to give so much of an idea of them as shall be sufficient to show in outline how certain phenomena are performed. All who have much experience of spiritualistic _seances_ at which physical results are produced must at one time or another have seen evidence of the employment of practically resistless force in, for example, the instantaneous movement of enormous weights, and so on; and if of a scientific turn of mind, they may perhaps have wondered whence this force was obtained, and what was the leverage employed. As usual in connection with astral phenomena, there are several ways in which such work may have been done, but it will be enough for the moment to hint at four. First, there are great etheric currents constantly sweeping over the surface of the earth from pole to pole in volume which makes their power as irresistible as that of the rising tide, and there are methods by which this stupendous force may be safely utilized, though unskilful attempts to control it would be fraught with frightful danger. Secondly, there is what can best be described as an etheric pressure, somewhat corresponding to, though immensely greater than, the atmospheric pressure. In ordinary life we are as little conscious of one of these pressures as we are of the other, but nevertheless they both exist, and if science were able to exhaust the ether from a given space, as it can exhaust the air, the one could be proved as readily as the other. The difficulty of doing that lies in the fact that matter in the etheric condition freely inter-penetrates matter in all states below it, so that there is as yet no means within the knowledge of our physicists by which any given body of ether can be isolated from the rest. Practical Occultism, however, teaches how this can be done, and thus the tremendous force of etheric pressure can be brought into play. Thirdly, there is a vast store of potential energy which has become dormant in matter during the involution of the subtle into the gross, and by changing the condition of the matter some of this may be liberated and utilized, somewhat as latent energy in the form of heat may be liberated by a change in the condition of visible matter. Fourthly, many striking results, both great and small, may be produced by an extension of a principle which may be described as that of sympathetic vibration. Illustrations taken from the physical plane seem generally to misrepresent rather than elucidate astral phenomena, because they can never be more than partially applicable; but the recollection of two simple facts of ordinary