Another fact which could hardly fail soon to thrust itself upon his notice would be the extension of his perception of colour. He would find himself able to see several entirely new colours, not in the least resembling any of those included in the spectrum as we at present know it, and therefore of course quite indescribable in any terms at our command. And not only would he see new objects that were wholly of these new colours, but he would also discover that modifications had been introduced into the colour of many objects with which he was quite familiar, according to whether they had or had not some tinge of these new hues intermingled with the old. So that two surfaces of colour which to ordinary eyes appeared to match perfectly would often present distinctly different shades to his keener sight. We have now touched upon some of the principal changes which would be introduced into a man's world when he gained etheric sight; and it must always be remembered that in most cases a corresponding change would at the same time be brought about in his other senses also, so that he would be capable of hearing, and perhaps even of feeling, more than most of those around him. Now supposing that in addition to this he obtained the sight of the astral plane, what further changes would be observable? Well, the changes would be many and great; in fact, a whole new world would open before his eyes. Let us consider its wonders briefly in the same order as before, and see first what difference there would be in the appearance of inanimate objects. On this point I may begin by quoting a recent quaint answer given in _The Vahan_. "There is a distinct difference between etheric sight and astral sight, and it is the latter which seems to correspond to the fourth dimension. "The easiest way to understand the difference is to take an example. If you looked at a man with both the sights in turn, you would see the buttons at the back of his coat in both cases; only if you used etheric sight you would see them _through_ him, and would see the shank-side as nearest to you, but if you looked astrally, you would see it not only like that, but just as if you were standing behind the man as well. "Or if you were looking etherically at a wooden cube with writing on all its sides, it would be as though the cube were glass, so that you could see through it, and you would see the writing on the opposite side all backwards, while that on the right and left sides would not be clear to you at all unless you moved, because you would see it edgewise. But if you looked at it astrally you would see all the sides at once, and all the right way up, as though the whole cube had been flattened out before you, and you would see every particle of the inside as well--not _through_ the others, but all flattened out. You would be looking at it from another direction, at right angles to all the directions that we know.