Rick (and Duckboots), one obvious entry point is Joni Mitchell's history with her daughter -- "Bitter Green" of course being the song that no one knew was about having to give up her daughter for adoption, until she said so just before finding her. It is funny how knowing the story changes the resonance of a song one has listened to for 20 years, but not of course listened to in that way. Itself a modest parallel to the reframing of one's life. It would be interesting to find out if she has written any songs recently about the new phase.
Yours, Peter T.