Unbearable Why Lyrics

Lyric discussion by jc4jcjcjc20jc 

Cover art for Unbearable Why lyrics by Dr. Dog

Maybe about death wondering why it must happen and not knowing what comes next if anything, but then that gives it a kind of thrill and wonder not knowing for sure how mysterious it is. Not sure about the last 3 lines though. The song could also mean he lost someone close to him and now his life feels like jail time? both together seems to work too