Which theme does this passage illustrate?

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.

I'm a principal of a primary nepali school.(class 1 to 5) there are only 3 teachers altogether.it is very difficult to teach them effectively.so one private institute asked me to write an application for 2 teachers with school minutes.i have no idea about it: 1. how to write school minutes and 2. how to write an application for the post of 2 teachers. me kindly.

What is in his westrose president lincoln central claim in the speech