Mediocrity in the Aftermath of Service

To love makes one solitary, she thought. She could tell nobody, not even Septimus now, and looking back, she saw him sitting in his shabby overcoat alone, on the seat, hunched up, staring. And it was cowardly for a man to say he would kill himself, but Septimus had fought; he was brave; he was not Septimus now (Woolf 33).

Woolf, Virginia. Mrs. Dalloway. Harcourt, Brace & World, Inc. 1925. https://babel.hathitrust.org/cgi/pt?id=mdp.39015013962207&view=1up&seq=1&skin=2021

Suffering from the aftermath of the Great War, Septimus has sought refuge from the horrors he has dealt with by retreating into his own mind. Despite coming back a victor, he has been reduced to nothing more than a shell of the man he once was. How does Woolf use Septimus’ POV to relate how the other characters interact with everyday happenings versus how he sees them? Why the criticism and hopelessness? How does his character add onto the experience of others?