Analysis of Dream River

WIND-SILVERED willows hedge the stream,
And all within is hushed and cool.
The water, in an endless dream,
Goes sliding down from pool to pool.
And every pool a sapphire is,
From shadowy deep to sunlit edge,
Ribboned around with irises
And cleft with emerald spears of sedge.

O, every morn the winds are stilled,
The sunlight falls in amber bars.
O, every night the pools are filled
With silver brede of shaken stars.
O, every morn the sparrow flings
His elfin trills athwart the hush,
And here unseen at eve there sings
One crystal-throated hermit-thrush.