It is incomplete because it cannot possibly be applied to all the facts. Let us grant that it will apply to the most important prophecy, that of the crown; and that the later warning which Macbeth receives, to beware of Macduff, also answers to something in his own breast and 'harps his fear aright' But there we have to stop. Macbeth had evidently no suspicion of that treachery in Cawdor through which he himself became Thane; and who will suggest that he had any idea, however subconscious, about Birnam Wood or the man not born of woman? It may be held--and rightly, I think--that the prophecies which answer to nothing inward, the prophecies which are merely supernatural, produce, now at any rate, much less imaginative effect than the others,--even that they are in _Macbeth_ an element which was of an age and not for all time; but still they are there, and they are essential to the plot.[209] And as the theory under consideration will not apply to them at all, it is not likely that it gives an adequate account even of those prophecies to which it can in some measure be applied. It is inadequate here chiefly because it is much too narrow. The Witches and their prophecies, if they are to be rationalised or taken symbolically, must represent not only the evil slumbering in the hero's soul, but all those obscurer influences of the evil around him in the world which aid his own ambition and the incitements of his wife. Such influences, even if we put aside all belief in evil 'spirits,' are as certain, momentous, and terrifying facts as the presence of inchoate evil in the soul itself; and if we exclude all reference to these facts from our idea of the Witches, it will be greatly impoverished and will certainly fail to correspond with the imaginative effect. The union of the outward and inward here may be compared with something of the same kind in Greek poetry.[210] In the first Book of the _Iliad_ we are told that, when Agamemnon threatened to take Briseis from Achilles, 'grief came upon Peleus' son, and his heart within his shaggy breast was divided in counsel, whether to draw his keen blade from his thigh and set the company aside and so slay Atreides, or to assuage his anger and curb his soul. While yet he doubted thereof in heart and soul, and was drawing his great sword from his sheath, Athene came to him from heaven, sent forth of the white-armed goddess Hera, whose heart loved both alike and had care for them. She stood behind Peleus' son and caught him by his golden hair, to him only visible, and of the rest no man beheld her.' And at her bidding he mastered his wrath, 'and stayed his heavy hand on the silver hilt, and thrust the great sword back into the sheath, and was not disobedient to the saying of Athene.'[211] The succour of the goddess here only strengthens an inward movement in the mind of Achilles, but we should lose something besides a poetic effect if for that reason we struck her out of the account. We should lose the