Thomas Hardy's poem, "The Darkling Thrush," is a bleak poem that uses the stark winter as a metaphor for the end of the 1800's and the hopeful, melodic song of a single thrush as a symbol of the century to come. The final lines of the poem:
Some blessed Hope, whereof he knew,
And I Was unaware.
serve as a means of turning the page into the new century. The poem speaks of despair and decay but the narrator senses there is something meaningful and beautiful just out of reach which the sweet, hopeful song of the bird represents. The narrator can not understand it because it is just beyond his grasp. The narrator emphasizes the significance of this happiness and peace by capitalizing the word "Hope". Hardy attempts to bridge the extremes of believing the thrush has no reason for singing - an existential emptiness - to the comforting realization that true joy is a possibility.