A young, curious nun had just joined a monastery. One afternoon, she noticed a small, locked wooden box on a hallway shelf and asked the head priest, “Father, what’s inside that box?”

The priest replied calmly, “That is a secret only priests may know.”

Her curiosity grew. She asked repeatedly over the days and weeks, but the priest always refused. Finally, one evening he made a deal: if she could guess what was inside, she could see it.

She guessed everything she could think of—money, a sacred document, a relic—but nothing was correct. Exhausted, she admitted she had no idea. The priest then opened the box to reveal… a mirror.

Confused, she said, “Father, it’s just a mirror.”

The priest smiled. “Exactly. The lesson is simple: when curiosity drives you toward things you shouldn’t know, you should first look at yourself.”

The nun looked into the mirror, laughed, and finally understood the wisdom of his teaching.