How does including Emily Dickinson’s poem at the beginning of the speech support Solomon’s claims about depression?

(from CommonLit)

in what passage i'm sorry but i don't see anything there.

each morning i wrote my name

on the dusty cabinet, then crossed

the dining table in script, scrawled

in capitals on the backs of chairs,

practicing signatures like scales

while mother followed squirting

linseed from a burping can

well, there are online sites that can make it look like a texting screenshot, so u can make it like hamilton texting jefferson through that, and he can start with him being like, i know it's out of the blue, but blah blah blah

the correct answer is: reveal gregor as an untidy individual.

in metamorphosis by franz kafka, gregor samsa is the main character, who one day wakes up as a bug, and the attitude he takes upon his transformation forces him to go deeper on his existence and the new features of his body.

in this excerpt the writer mentions a table full of collection textile samples, which gives us a hint about gregor being messy. later on the book we discover how he is a really untidy individual.