Atlantis

It dies hard, the notion of a just people;
  The wish that there should have been once mutual aid
Dies very hard. Through fire, through ghastly ash and any
  Smothering weight of water still we imagine
A life courteous and joyful; see them lightly clad
  Loving the sun, the vine and the grey olive.
Over the water, from trading, they come home winged
  With sails, their guide and harbinger the white dove.

I

The sea suddenly stood up vertical, sky-high,
Bristling with the planks of their peaceful ships.
The earth roared like a bull. They said Poseidon,
Breaker of lintels, was shaking them. There was fire too
Glaring like a red eye. But the unkindest
Was of all the four elements the purest
And to breathing man his being: the air
Clagged and precipitated in cankers of pumice
...