I'm glad you brought that up
I listened to "Blackstar" and "Lazarus" today, and...it's hard to know what to say when the final work of a genius is inspired by the knowledge of his impending death. I remember thinking after "Blackstar", "beauty isn't always pretty". And "Lazarus", opening with "Look up here, I'm in Heaven!", and ends "Oh, I'll be free, Just like that bluebird, Oh I'll be free, Ain't that just like me?".
"Lazarus"...resurrection. You have to wonder...