I've been trying to understand the last line from the poem "The Importance of Elsewhere" by Philip Larkin. The line goes
Here no elsewhere underwrites my existence.
I found it difficult to decide on the subject in this sentence, and that made it really hard for me to get the meaning of this sentence. What is it that "underwrites my existence"? Is it "here"? Or is it "Elsewhere"? Or is it that "here" is an adverb and "No elsewhere" is the subject? I'm really confused! Thanks for any help!
Below is the poem.
Lonely in Ireland, since it was not home, Strangeness made sense. The salt rebuff of speech, Insisting so on difference, made me welcome: Once that was recognised, we were in touch. Their draughty streets, end-on to hills, the faint Archaic smell of dockland, like a stable, The herring-hawker's cry, dwindling, went To prove me separate, not unworkable. Living in England has no such excuse: These are my customs and establishments It would be much more serious to refuse. Here no elsewhere underwrites my existence.