What is the effect of the Arthur's choice to repeat the words absolutely and everything in these sentences

In “the things they carried”, why is jimmy unsure when martha calls the pebble “a token of her truest feelings”

Ill she not be here anon? is she not hurrying to upbraid me for my haste? have i not heard her footstep on the stair? do i not distinguish that heavy and horrible beating of her heart? what is the effect of parallelism in this excerpt? it emphasizes usher’s misunderstanding. it emphasizes usher’s love for his sister. it emphasizes usher’s psychological fixation. it emphasizes usher’s melancholy nature.

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