Read this passage:
the sea of faith
was once, too, at the full, and round earth's shore
lay like the folds of a bright
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.
- matthew arnold, "dover beach"
which word from this passage of matthew arnold's "dover
beach" makes the mood of the poem sad and lonely?