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Line 1: The entire poem is basically a single metaphor. If you were ever confused about the difference between a metaphor and a simile, and the difference it can make to use one instead of the other, this is a great poem to look at. Pound could have said that the faces "look like" flower petals, which would have produced a simile. By leaving this expression out, the poem reads as if it were saying that the faces are petals. Textbook metaphor. The two images are fused into one.