To persons investigating the phenomena of clairvoyance for the first time, however, there seems to be a much greater mystery attached to the phenomena of Past Clairvoyance than in the case of Distant Clairvoyance. To such persons it seems that while the perception of distant objects, scenes, and events is wonderful and mysterious, still at the last it is merely the perception of something now actually in existence--merely the extension of one's normal powers of vision so as to include objects beyond the range of the ordinary vision, but, still, actually in existence though at a distance. The idea of the telescope enables the mind to grasp the naturalness of this kind of phenomena. But when it comes to the perception of things, scenes, and events WHICH ARE NO LONGER IN EXISTENCE--things which have passed entirely out of existence--the mystery seems to be increased, and incredulity becomes more insistent. But to the occultist there is really no more mystery in the one case than in the other--both sets of phenomena are seen to be perfectly reasonable and within the realms of Nature. Let us now see how and why the occultists view the matter in this light. Analogies on the Physical Plane. We may find many correspondences on the physical plane to serve as illustrations of the phenomena of Past Time Clairvoyance, if we will but look for them. For instance, when we withdraw a heated stove from a room, the heat remains in the room. Likewise, though a woman bearing the odor of a certain perfume on her clothing may have passed from a house, the odor still lingers there. The wake of an ocean steamer is often visible for hours after the ship has passed from sight. As modern science expressed it: "Causes continue to exist in their Effects." Thousand-Year-Old Light.