I "hear" this song by Imogen Heap on a personal level, but also on a spiritual one. Very poignant reflection of the whole "personal relationship with Jesus Christ" that's always eluded me. I realized I could live an entire lifetime in "the wretched hollow."
There are other "wretched hollows" in my life and over and over again, I see, once more, that putting curtains up in a prison cell doesn't make it "home." Maybe getting fed up with the "wretched hollow" is what finally motivates us to grow, change, move, stop waiting for someone else to engineer our satisfaction, and instead begin making our own happy lives.