Crumbling Building
And the silken, sad, uncertain rustling of each purple curtain
Thrilled me-filled me with fantastic terrors never felt before;
So that now, to still the beating of my heart, I stood repeating
"'Tis some visitor entreating entrance at my chamber door-
Some late visitor entreating entrance at my chamber door;-
This it is and nothing more."
The crumbling building symbolizes the decay and breakdown of the narrator's mental state, reflecting his fear and uncertainty as he tries to rationalize the strange occurrences around him.