Rhetorical questions run through the whole poem, resulting in the uncertainty and fuzziness of the connotation of the poem, giving readers room for thinking and aftertaste, which is the embodiment of the "implication" characteristics of the poem. However, the problem of the conclusion sentence is shocking, which implies a sense of loss in the desolation of Xanadu, full of regret and worthy of being the voice of the world.
Please accept it, thank you!