Underneath the Sycamore Lyrics

Lyric discussion by Copeland 

Cover art for Underneath the Sycamore lyrics by Death Cab for Cutie

Any chance this song is actually connected with St. Peter's Cathedral and is describing the Afterlife of someone who died in a car accident?

That there he and his loved ones are the same, the sycamore on a beautiful field just being a metapher for inner piece?

Maybe the song is what Ben would like an "Afterlife" to be, and SPC explains that he really thinks there is none.