ing from their parent slope
At slender interval, the level calm
Is ridg'd with restless and increasing spheres
Which break upon each other, each th' effect
Of separate impulse, but more fleet and strong
Than its precursor, till the eyes in vain
Amid the wild unrest of swimming shade
Dappled with hollow and alternate rise
Of interpenetrated arc, would scan
Definite round.
I know not if I shape
These things with accurate similitude
From visible objects, for but dimly now,
Less vivid than a half-forgotten dream,
The memory of that mental excellence
Comes o'er me, and it may be I entwine
The indecision of my present mind
With its past clearness, yet it seems to me
As even then the torrent of quick thought
Absorbed me from the nature of itself
With its own fleetness. Where is he that, borne
Adown the sloping of an arrowy stream,
Could link his shallop to the fleeting edge,
And muse midway with philosophic calm
Upon the wondrous laws which regulate
The fierceness of the bounding element?
My thoughts which long had grovell'd in the slime
Of this dull world, like dusky worms which house
Beneath unshaken waters, but at once
Upon some earth-awakening day of spring
Do pass from gloom to glory, and aloft
Winnow the purple, bearing on both sides
Double display of starlit wings which burn
Fanlike and fibred, with intensest bloom:
E'en so my thoughts, erewhile so low, now felt
Unutterable buoyancy and strength
To bear them upward through the trackless fields
Of undefin'd existence far and free.

Then first within the South methought I saw
A wilderness of spires, and chrystal pile
Of rampart upon rampart, dome on dome,
Illimitable range of battlement
On battlement, and the Imperial height
Of Canopy o'ercanopied.
Behind,
In diamond light, upsprung the dazzling Cones
Of Pyramids, as far surpassing Earth's
As Heaven than Earth is fairer. Each aloft
Upon his renown'd Eminence bore globes
Of wheeling suns, or stars, or semblances
Of either, showering circular abyss
Of radiance. But the glory of the place
Stood out a pillar'd front of burnish'd gold
Interminably high, if gold it were
Or metal more ethereal, and beneath
Two doors of blinding brilliance, where no gaze
Might rest, stood open, and the eye could scan
Through length of porch and lake and boundless