''But at my back I always hear
Time's winged chariot hurrying near'' illustrates
Answer Details
The lines "But at my back I always hear / Time's winged chariot hurrying near" illustrates a metaphor. The speaker is comparing time to a chariot with wings, suggesting that time is moving quickly and relentlessly, and it is catching up with the speaker from behind. The metaphor helps to convey a sense of urgency and the inevitability of the passing of time.