More of Yeats and Geometry

      A blog-posting I made last week spoke of the use by poet William Butler Yeats (1865-1939) of geometry in his poetry.  Here is another vivid example:

The Second Coming    by William Butler Yeats

     Turning and turning in the widening gyre
     The falcon cannot hear the falconer;
     Things fall apart; the centre cannot hold;
     Mere anarchy is loosed upon the world,
     The blood-dimmed tide is loosed, and everywhere
     The ceremony of innocence is drowned;
     The best lack all conviction, while the worst
     Are full of passionate intensity.

     Surely some revelation is at hand;
     Surely the Second Coming is at hand.
     The Second Coming! Hardly are those words out
     When a vast image out of Spiritus Mundi
     Troubles my sight; somewhere in sands of the desert
     A shape with lion body and the head of a man,
     A gaze blank and pitiless as the sun,
     Is moving its slow thighs, while all about it
     Reel shadows of indignant desert birds.
     The darkness drops again; but now I know
     That twenty centuries of stony sleep
     Were vexed to nightmare by a rocking cradle,
     And what rough beast, its hour come round at last,
     Slouches towards Bethlehem to be born?     

 Read more about Yeats and his work here.