Read this passage from “Dover Beach.” What do the retreating waves symbolize to the speaker?
 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.
 The loss of faith
 The danger of the wind
 The evils of Empire
 The joys of love