Then with a mournful and ineffable smile,
Which but to look on for a moment fill'd
My eyes with irresistible sweet tears,
In accents of majestic melody,
Like a swol'n river's gushings in still night
Mingled with floating music, thus he spake:
'There is no mightier Spirit than I to sway
The heart of man: and teach him to attain
By shadowing forth the Unattainable;
And step by step to scale that mighty stair