Not distant far from thence a murmuring sound
Of waters issued from a cave, and spread
Into a liquid plain, then stood unmoved
Pure as the expanse of heaven; I thither went
With unexperienced thought, and laid me down
On the green bank, to look into the clear
Smooth lake that to me seemed another sky.
As I bent down to look, just opposite
A shape within the watery gleam appeared,
Bending to look on me. I started back;