>>96876749
the food token is offerings left on his son's grave. "draw a card if there's a lesson in your graveyard" is Iroh literally learning from his son's death, that was the "lesson" that taught him to cherish life more and retire from his rampaging dragon of the west days. the +1 counters are the only iffy bit but you could easily see that as him helping be a mentor figure.

https://www.youtube.com/watch?v=f56Cbjwwv-E