Time is not in reality the fourth dimension at all; yet to look at it for the moment from that point of view is some slight help towards grasping the ungraspable. Suppose that we hold a wooden cone at right angles to a sheet of paper, and slowly push it through it point first. A microbe living on the surface of that sheet of paper, and having no power of conceiving anything outside of that surface, could not only never see the cone as a whole, but he could form no sort of conception of such a body at all. All that he would see would be the sudden appearance of a tiny circle, which would gradually and mysteriously grow larger and larger until it vanished from his world as suddenly and incomprehensibly as it had come into it. Thus, what were in reality a series of sections of the cone would appear to him to be successive stages in the life of a circle, and it would be impossible for him to grasp the idea that these successive stages could be seen simultaneously. Yet it is, of course, easy enough for us, looking down upon the transaction from another dimension, to see that the microbe is simply under a delusion arising from its own limitations, and that the cone exists as a whole all the while. Our own delusion as to past, present, and future is possibly not dissimilar, and the view that is gained of any sequence of events from the buddhic plane corresponds to the view of the cone as a whole. Naturally, any attempt to work out this suggestion lands us in a series of startling paradoxes; but the fact remains a fact, nevertheless, and the time will come when it will be clear as noonday to our comprehension. When the pupil's consciousness is fully developed upon the buddhic plane, therefore, perfect prevision is possible to him, though he may not--nay, he certainly will not--be able to bring the whole result of his sight through fully and in order into this light. Still, a great deal of clear foresight is obviously within his power whenever he likes to exercise it; and even when he is not exercising it, frequent flashes of fore-knowledge come through into his ordinary life, so that he often has an instantaneous intuition as to how things will turn out even before their inception. Short of this perfect prevision we find, as in the previous cases, that all degrees of this type of clairvoyance exist, from the occasional vague premonitions which cannot in any true sense be called sight at all, up to frequent and fairly complete second-sight. The faculty to which this latter somewhat misleading name has been given is an extremely interesting one, and would well repay more careful and systematic study than has ever hitherto been given to it.