The person who was having an existential crisis last week is still having a hard time.
'Rats' alleys'. Dead men. T.S. Eliot wrote his poem in 1922. Just a few short years after the worst conflict the planet had known had ended. War and the trenches that were built during those four terrible years are a recurring theme in The Waste Land.
Here are these dead men. And their bones that rise triumphantly and hold dominion over all.
This is a photo of a trench. You can see the sandbags that held the walls. The soldiers are waiting for their turn to be shaved. You may feel this is a luxury, but remember that gas was used in the First World War and that having facial hair interfere's with the gas mask. So it was necessary.