The swifts have no strength any more to retain,
To check the light-blue evening coolness.
It burst from their breasts, from their throats, under strain
And flows out of hand in its fullness.
There is not a thing that could stop them, up there,
From shrilly, exultedly crying,
Exclaiming: The earth has made off to nowhere,
O look! It has vanished - O triumph!