Lyric discussion by TshirtLadez 

Cover art for In Rime lyrics by John Frusciante

This song talks a lot about time. Einstein said time was a totally physical thing, like gravity, and the way we think about is kind of an illusion, so "what's sent ahead is sent behind" could mean that there's no real past or present, and when you die you'll finally see the "immediacy" of it all, and maybe even a pattern or a plan, a rime.