Tell Me

When Henry asks a question,
If it's "I don't know" I voice,
He counters with, "No, tell me,"
For he's sure I have a choice.

But yesterday, his query 
I could answer right away.
"Nana, why do you make up
A poem every day?"

"It makes me feel good," I replied.
"It's something I do well."
He thought about it, understanding 
(Far as I can tell).

"When you grow up," I told him,
"You will find what you can do."
"What is it, Nana? Tell me!"
Oh, I really wish I knew.