Let it be premised, then, that when any portion of this essence remains for a few moments entirely unaffected by any ontside influence (a condition, by the way, which is hardly ewer realized) it is absolutely without any definite form of its own, though its motion is still rapid and ceaseless*; but on the slightest disturbance, set up perhaps by some passing thoughtcurrent, it flashes into a bewildering confusion of restless, ever-changing shapes, which form, rush about, and disappear with the rapidity of the bubbles on the surface of boiling water. These evanescent shapes, though generally those of living creatures of some sort, human or otherwise, no more express the»existence of separate entities in the essence than do the equally changeful and multiform waves raised in a few moments on a previously smooth lake by a sudden squall. They seem to be mere rejections from the vast storehouse of the astral light, yet they have usually a certain appropriateness to'the character of the thought-stream which calls them into existence, though nearly always with some grotesque distortion, some terrifying »or unpleasant aspect about them. 7 2 A question naturally arises in the mind here as to what intelligence it is that is exerted in the selection of an