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.
It is best known to us as a not infrequent possession of the Scottish Highlanders, though it is by no means confined to them. Occasional instances of it have appeared in almost every nation, but it has always been commonest among mountaineers and men of lonely life. With us in England it is often spoken of as though it were the exclusive appanage of the Celtic race, but in reality it has appeared among similarly situated peoples the world over. It is stated, for example, to be very common among the Westphalian peasantry.
Sometimes the second-sight consists of a picture clearly foreshowing some coming event; more frequently, perhaps, the glimpse of the future is given by some symbolical appearance. It is noteworthy that the events foreseen are invariably unpleasant ones—death being the commonest of all; I do not recollect a single instance in which the second-sight has shown anything which was not of the most gloomy nature. It has a ghastly symbolism which is all its own—a symbolism of shrouds and corpse-candles, and other funereal horrors. In some cases it appears to be to a certain extent dependent on locality, for it is stated that inhabitants of the Isle of Skye who possess the faculty often lose it when they leave the island, even though it be only to cross to the mainland. The gift of such sight is sometimes hereditary in a family for generations, but this is not an invariable rule, for it often appears sporadically in one member of a family otherwise free from its lugubrious influence.
An example in which an accurate vision of a coming event was seen some months beforehand by second-sight has already been given. Here is another and perhaps a more striking one, which I give exactly as it was related to me by one of the actors in the scene.
"We plunged into the jungle, and had walked on for about an hour without much success, when Cameron, who happened to be next to me, stopped suddenly, turned pale as death, and, pointing straight before him, cried in accents of horror:
"'See! see! merciful heaven, look there!'
"'Where? what? what is it?' we all shouted confusedly, as we rushed up to him and looked round in expectation of encountering a tiger—a cobra—we hardly knew what, but assuredly something terrible, since it had been sufficient to cause such evident emotion in our usually self-contained comrade. But neither tiger nor cobra was visible—nothing but Cameron pointing with ghastly, haggard face and starting eyeballs at something we could not see.