Lyric discussion by yhtrownu 

Cover art for Vesuvius lyrics by Sufjan Stevens

This song is about Sufjan belatedly giving in to the fire of his id: ie. "Vesuvius!"

He said last night at Royal Festival Hall that he had been a planner when he was 15, everything meticulous, well-behaved and in it's place, but at 30 he has decided to give in to all his impulses and feelings, to give in to his desire to become a creature of the body instead of the creature of the mind he has been in the past. He said he was trying brave new things like stamp-collecting, and he (jokingly) told us to quit school and take drugs.

From a Christian perspective, you'd say that Sufjan has fallen, and is risking fire and brimstone (and the song worries about this - "article of eminent death," "why do things have to be so hard"). I'd say Sufjan's belatedly finding himself. Best wishes, Sufjan! Awesome concert, eruption of joy and dancing at the end - everything I think this song is about! :)