Caterwaul

Do we assume that caterwauling is a sort of calling?
A sound like cats a-wailing, as etymologists say?
A clattering? A wet tarpaulin of expressive misery?
The mistake is in thinking that pain finds voice
In onompatopoeia, or rhyme, or association.
Pain has no association but itself; it dissolves all rhymes.
It is the solitary and single thing, and when we voice it
The last thing we resemble is an incommoded cat.