You should be understanding of other people's issues.
Hilda's friend Rosa is crying because she mistakenly broke a fingernail.
Hilda wants to reply to Rosa.
Hilda explains that lots of people have other problems a lot worse than a broken nail.
"Hilda gets upset and points out that she has several ""real"" problems she isn't crying over."
Rosa is glad she doesn't have any of those problems and feels much better.
Rosa gets upset and cries even more because her friend is shouting at her.