Most likely passage for the test:
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;
Tge best lack all conviction, while the worst
Are full of passionate intensity.
Context: Yeats gives his own occult version of the second coming of Christ. The world is in anarchy. Instead of Christ returning, the Sphinx in Egypt comes to life, unleashing an evil beast upon the world.