I am urging, then, that where life is concerned, and where, therefore, change is normality, we ought to place our norm somewhat ahead of the average man, though on the evolutionary track which our race is pursuing. I have suggested that that evolutionary track is at present leading him in the direction of greater complexity in the perceptions which he forms of things without, and of greater concentration in his own will and thought,--in that response to perceptions which he makes from within. Lastly I have argued that men of genius, whose perceptions are presumably more vivid and complex than those of average men, are also the men who carry the power of concentration furthest;--reaching downwards, by some self-suggestion which they no more than we can explain, to treasures of latent faculty in the hidden Self. I am not indeed here assuming that the faculty which is at the service of the man of genius is of a kind different from that of common men, in such a sense that it would need to be represented by a prolongation of either end of the conscious spectrum. Rather it will be represented by such a brightening of the familiar spectrum as may follow upon an intensification of the central light. For the spectrum of man's conscious faculty, like the solar spectrum, is not continuous but banded. There are groups of the dark lines of obstruction and incapacity, and even in the best of us a dim unequal glow. It will, then, be the special characteristic of genius that its uprushes of subliminal faculty will make the bright parts of the habitual spectrum more brilliant, will kindle the dim absorption-bands to fuller brightness, and will even raise quite dark lines into an occasional glimmer. But, if, as I believe, we can best give to the idea of genius some useful distinctness by regarding it in some such way as this, we shall find also that genius will fall into line with many other sensory and motor automatisms to which the word could not naturally be applied. Genius represents a narrow selection among a great many cognate phenomena;--among a great many uprushes or emergences of subliminal faculty both within and beyond the limits of the ordinary conscious spectrum. It will be more convenient to study all these together, under the heading of sensory or of motor automatism. It will then be seen that there is no kind of perception which may not emerge from beneath the threshold in an indefinitely heightened form, with just that convincing suddenness of impression which is described by men of genius as characteristic of their highest flights. Even with so simple a range of sensation as that which records the lapse of time there are subliminal uprushes of this type, and we shall see that a man may have a sudden and accurate inspiration of what o'clock it is, in just the same way as Virgil might have an inspiration of the second half of a difficult hexameter.