It may have been this memory, or it may have been some impulse of his nature too subtle for his mind to follow, that made Keats, with his love of embodied things, of precision of form and colouring, of emotions made sleepy by the flesh, see Intellectual Beauty in the Moon; and Blake, who lived in that energy he called eternal delight, see it in the Sun, where his personification of poetic genius labours at a furnace. I think there was certainly some reason why these men took so deep a pleasure in lights, that Shelley thought of with weariness and trouble. The Moon is the most changeable of symbols, and not merely because it is the symbol of change. As mistress of the waters she governs the life of instinct and the generation of things, for as Porphyry says, even 'the apparition of images' in the 'imagination' is through 'an excess of moisture'; and, as a cold and changeable fire set in the bare heavens, she governs alike chastity and the joyless idle drifting hither and thither of generated things. She may give God a body and have Gabriel to bear her messages, or she may come to men in their happy moments as she came to Endymion, or she may deny life and shoot her arrows; but because she only becomes beautiful in giving herself, and is no flying ideal, she is not loved by the children of desire. Shelley could not help but see her with unfriendly eyes. He is believed to have described Mary Shelley at a time when she had come to seem cold in his eyes, in that passage of _Epipsychidion_ which tells how a woman like the Moon led him to her cave and made 'frost' creep over the sea of his mind, and so bewitched life and death with 'her silver voice' that they ran from him crying, 'Away, he is not of our crew.' When he describes the Moon as part of some beautiful scene he can call her beautiful, but when he personifies, when his words come under the influence of that great memory or of some mysterious tide in the depth of our being, he grows unfriendly or not truly friendly or at the most pitiful. The Moon's lips 'are pale and waning,' it is 'the cold Moon,' or 'the frozen and inconstant Moon,' or it is 'forgotten' and 'waning,' or it 'wanders' and is 'weary,' or it is 'pale and grey,' or it is 'pale for weariness,' and 'wandering companionless' and 'ever changing,' and finding 'no object worth' its 'constancy,' or it is like a 'dying lady' who 'totters' 'out of her chamber led by the insane and feeble wanderings of her fading brain,' and even when it is no more than a star, it casts an evil influence that makes the lips of lovers 'lurid' or pale. It only becomes a thing of delight when Time is being borne to his tomb in eternity, for then the spirit of the Earth, man's procreant mind, fills it with his own joyousness. He describes the spirit of the Earth and of the Moon, moving above the rivulet of their lives in a passage which reads like a half-understood vision. Man has become 'one harmonious soul of many a