It is an allusion The poem uses Christian imagery regarding the Apocalypse and Second Coming allegorically to describe the atmosphere of post-war Europe.
Answer:
He uses terminology to communicate complex concepts.
It means like don't over use it or don't under use it. Use it for when you need it and when its important rather then use it for something that doesn't matter.
How so . What is the thing you need help with ?
The first answer is A
the second answer is A
the third answer is either B or D