The Circles

‘Within yon world-wide cirque of war
  What's hidden which they fight so for?’
  My guide made answer, ‘Rich increase
  Of virtue and use, which are by peace,
  And peace by war. That inner ring
  Are craftsmen, working many a thing
  For use, and, these within, the wise
  Explore the grass and read the skies.’
  ‘Can the stars’ motions give me peace,
  Or the herbs' virtues mine increase?
  Of all this triple shell,’ said I,
  ‘Would that I might the kernel spy!’
  A narrower circle then I reach'd,
  Where sang a few and many preach'd
  Of life immortal. ‘But,’ I said,
  ‘The riddle yet I have not read.
  Life I must know, that care I may
  For life in me to last for aye.’
  Then he, ‘Those voices are a charm
  To keep yon dove-cot out of harm.’
  In the centre, then, he show'd a tent
  Where, laughing safe, a woman bent
  Over her babe, and, her above,
  Lean'd in his turn a graver love.
  ‘Behold the two idolatries
  By which,’ cried he, ‘the world defies
  Chaos and death, and for whose sake
  All else must war and work and wake.’