The Philosophy of Shelley's Poetry.
'a subtle language within language' on the sand by the 'fountain' of sea water in the cave where she is imprisoned, speaks of the 'cave' of her mind which gave its secrets to her, and of 'one mind the type of all' which is a 'moveless wave' reflecting 'all moveless things that are'; and then passing more completely under the power of the symbol, she speaks of growing wise through contemplation of the images that rise out of the fountain at the call of her will. Again and again one finds some passing allusion to the cave of man's mind, or to the caves of his youth, or to the cave of mysteries we enter at death, for to Shelley as to Porphyry it is more than an image of life in the world. It may mean any enclosed life, as when it is the dwelling-place of Asia and Prometheus, or when it is 'the still cave of poetry,' and it may have all meanings at once, or it may have as little meaning as some ancient religious symbol enwoven from the habit
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