Can u please explain to me dark romanticism !!help me plz

In this excerpt from "dover beach" by matthew arnold, which two lines or sets of lines suggest that the speaker has undergone a loss of faith? the sea of faith was once, too, at the full, and round earth's shore lay like the folds of a bright girdle furled. but now i only hear its melancholy, long, withdrawing roar, retreating, to the breath of the night-wind, down the vast edges drear and naked shingles of the world. ah, love, let us be true to one another! for the world, which seems to lie before us like a land of dreams, so various, so beautiful, so new, hath really neither joy, nor love, nor light, nor certitude, nor peace, nor for pain; and we are here as on a darkling plain swept with confused alarms of struggle and flight, where ignorant armies clash by night.

You learned in this lesson that the mythical trojan war was instrumental in forming greek culture. it has been said that there were no real "greeks" before this, just relatively unconnected kingdoms in the land that would later be called greece. how did the story of the war "make" greek culture? select all that apply. it provided something for all greeks to talk about. it gave greeks a common history. it represented a moment when the different kingdoms came together for a common cause, unifying the different kingdoms into one greece. it showed how agamemnon conquered the lesser kingdoms and unified them under his rule.

"as one of our outstanding historical figures once said, ‘when a great democracy is destroyed, it will not be because of enemies from without but rather because of enemies from within.’" (paragraph 7) how does this quote reveal mccarthy’s point of view and advance the purpose of his speech?