It would be so easy, Fíli thinks. To gather up all his fear for Kíli and the Company, the shame of his ignoble death, the aches and pains and little disappointments of living, and let them all fall from his hands. To see his father again, now only a bright-haired laughing blur in his memory. Fíli is dead, and his family will cut their beards and ashen their brows, but Kíli will have run and Thorin will have fought and they will live on. Fíli is dead and this is where he belongs.
"And the other option?" he asks, softly.
i.e., Fíli brings his family home from the Underworld.
Source: archiveofourown.org