Of fierce extremes, extremes by change more fierce,
From beds of raging fire to starve in ice
Their soft ethereal warmth, and there to pine
Immovable, infixed, and frozen round
Periods of time,--thence hurried back to fire.
They ferry over this Lethean sound
Both to and fro, their sorrow to augment,
And wish and struggle, as they pass, to reach
The tempting stream, with one small drop to lose
In sweet forgetfulness all pain and woe,
All in one moment, and so near the brink;
But Fate withstands, and, to oppose th' attempt,
Medusa with Gorgonian terror guards
The ford, and of itself the water flies
All taste of living wight, as once it fled
The lip of Tantalus. Thus roving on
In confused march forlorn, th' adventurous bands,
With shuddering horror pale, and eyes aghast,
Viewed first their lamentable lot, and found
No rest. Through many a dark and dreary vale
They passed, and many a region dolorous,
O'er many a frozen, many a fiery alp,
Rocks, caves, lakes, fens, bogs, dens, and shades of death--
A universe of death, which God by curse
Created evil, for evil only good;
Where all life dies, death lives, and Nature breeds,
Perverse, all monstrous, all prodigious things,
Obominable, inutterable, and worse
Than fables yet have feigned or fear conceived,
Gorgons, and Hydras, and Chimeras dire.