Mighty Bright

What metaphors does William Wordsworth evoke in the last two lines of “Composed on Westminster Bridge, 1802″?

“Composed upon Westminster Bridge, Sept. 3, 1802″
Earth has not anything to show more fair:
Dull would he be of soul who could pass by
A sight so touching in its majesty;
This City now doth, like a garment, wear
The beauty of the morning; silent, bare,
Ships, towers, domes, theaters, and temples lie
Open unto the fields, and to the sky;
All bright and glittering in the smokeless air.
Never did sun more beautifully steep
In his first splendor, valley, rock, or hill;
Ne’er saw I, never felt, a calm so deep!
The river glideth at his own sweet will:
Dear God! the very houses seem asleep;
And all that mighty heart is lying still!

Well…the earth is like a person? The houses are sleeping like people, and the heart of the earth, the city, is lying still in sleep?

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