Bones tell me the story of a person's life - how old they were, what their gender was, their ancestral background.
We were on a tour, and there were some chord formations that were tough for me to play when I was a kid. . . it had become apparent that there was some stuff I wanted to do that [would require me] to learn how to do that. So I wrote the song and used some of these chord formations so I would have to play them. I thought it would be a great teaching vehicle for a while, and it was, but it ended up as a performance song.