I believe it would be a metaphor.
The eight parts of speech are nouns, pronouns<span>, verbs, adjectives, adverbs, </span>conjunctions<span>, prepositions, and interjections
</span>
The main ideas shaping US imperialism were "Manifest destiny" and the "White man's burden". Manifest destiny refers to the 19th century belief that the United States were meant to expand across North America because of the particular excellence of its (white) people and (democratic) institutions. This lead to the Trail of Tears, among other atrocities. Once the US reached the Pacific Ocean, new lands came into view (Puerto Rico, the Phillipines). Manifest destiny became entwined with the idea that "civilized" nations had a moral obligation to colonize other peoples, which Rudyard Kipling summed up in his poem "White Man's Burden". The tensions in this "benevolent imperialism" were never fully resolved; the US invasion of Irak was launched under similar pretenses (the invasion was "for the good" of those invaded). The idea that other peoples have a right to self determination regardless of their level of development has not yet become accepted by the great powers, including the US.
The chest, on that day of moving, had been set in the new attic, which was smaller than the other, and less frightening, perhaps because gaps in the cedar-shingled roof let dabs of daylight in. When the roof was being repaired, the whole space was thrown open to the weather. This is the answer.
