Challenges give you a chance to get to know yourself better.

What a hard stretch reveals tends to be unglamorous. Not hidden courage. More like the fact that you skip lunch when you are worried, or that you get short with whoever is least able to defend themselves.

Small, useful, slightly embarrassing information. The kind you can act on.

None of it has to be collected today. The knowing usually arrives months later, in a quiet moment, when you catch yourself handling something the way you did not last time.