The line 'And 'mid this tumult Kubla heard from far Ancestral voices prophesying war!' suggests Xanadu's end in destruction.
'Xanadu' ending in destruction is suggested in the line: 'And 'mid this tumult Kubla heard from far Ancestral voices prophesying war!'
The mention of prophesying war indicates a foreboding of conflict, hinting at a negative outcome for Xanadu in Coleridge's work.
This line reflects a sense of impending doom and reinforces the idea of eventual destruction in the poem.
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