The purer air of heaven. Keen rush’d the light

In quivering splendour from the writhen flash:

Strong though they were, intolerable smote

Their orbs of sight, and with bedimming glare

Scorch’d up their blasted vision. [209]Through the void

Of Erebus, the preternatural flame

Spread, mingling fire with darkness. But to see

With human eye and hear with ear of man

Had been, as on a time [210]the heaven and earth

Met hurtling in mid-air: as nether earth