Final answer:
In John Keats's 'Ode on a Grecian Urn,' the poet is speaking to the entire Grecian urn, personifying it as a silent storyteller that communicates a timeless narrative through its engravings.
Step-by-step explanation:
In the excerpt from "Ode on a Grecian Urn" by John Keats, the poet is addressing the entire Grecian urn. Keats refers to the urn using a series of metaphors, such as 'unravished bride of quietness,' 'foster-child of silence and slow time,' and 'sylvan historian.'
These personifications highlight the urn as a storyteller of its own historical and artistic narrative. The urn, through its engravings, depicts frozen moments in time and communicates a story that transcends the ages, holding within it depictions of various figures and scenes that prompt questions about their legends.