What mood do words like "sifts," "powders," "Wool," and "Vails" [veils] create in Emily Dickinson's "It sifts from Leaden Sieves"? a. a gloomy, dark mood B. a mood of quiet transformation C. a ghostly, mysterious mood D. a mood of threatening alarm
So if you think about the connotations of the words, veils conceal things, sifting implies a kind of search, so I'd say the answer is C. a ghostly, mysterious mood.
