Billy Collins's poem "Introduction to Poetry" is heavily metaphorical. Collins uses figurative language, mostly metaphors, to contrast what he thinks students/readers do when trying to analyze a poem with what he as teacher/poet wants the readers to do when analyzing a poem.
In lines 1-3, when Collins wants "them" to hold the poem "up to the light / Like a color slide," he uses a simile to suggest that readers should look very closely at the poem and examine it in depth. When he says he wants them to "press an ear against its hive," Collins uses a metaphor to express his desire for readers to listen closely to all of the activity within the hive. The image of the hive itself suggests a busy, thriving environment, but the reader must approach it from the outside and on its own terms.
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