Literary Devices in The Wild Swans at Coole

The swans have been touted as a symbol of permanence or timelessness throughout this poem, retaining their youth and passion while the speaker grows old and tired. However, this rhetorical question acknowledges that these swans are not separate from the events of life, and they too will at some point migrate and move on to a different place to delight the eyes of different people. To end on this note is to further the emphasize the inevitably of change, growth, and death.