A Pool Among The Rocks

I know a pool, whose crystalline repose
Sleeps under walls of granite, whence the pine
Leans looking at its image, line for line
Repeated with the sumach and wild-rose
That redden on the rocks; where, at day's close,
The sunset dreams, and lights incarnadine
Dark waters and the place seems brimmed with wine,
A giant cup that splendour overflows.
Night, in her livery of stars and moon,
Stoops to its mirror, gazing steadily;
And, saddened by her beauty, drops one tear,
A falling star; while round it sighs the rune
Of winds, conspirators that sweep from sea,
Whispering of things that fill the heart with fear.