I always suspected this Indigo Girls song (as catchy as any song about angst and despair could hope to be) was, at its roots, religious. Commenters at SongMeanings.net think it's about coming out of the closet (both bandmembers are gay), among other things. Many apply their own messages to this metaphor-rich passage:
"Well darkness has a hunger that's insatiable
And lightness has a call that's hard to hear"
The writer Emily Saliers (a "PK"*) says on SongFacts.com that it's a little less specific:
"... about not beating yourself up too hard to get your answer from one place. There's no panacea, that in order to be balanced or feel closer to fine it's okay to draw from this or to draw from that, to draw from a bunch of different sources. So it's about being confused but looking for the answers, and in the end knowing that you're going to be fine. No seeking just one definitive answer."Saliers and Amy Ray's song won the Best Contemporary Folk Grammy in '89 and the Indigo Girls were nominated for Best New Artist Grammy as was Milli Vanilli, which didn't work out for either group.