What in the world?

Big prize to anyone who can figure this out.

Jo said:

We all going to be wood.
I going to be wood.
Daddy going to be wood.
Sam going to be wood.
Billy going to be wood.
My dolls going to be wood.
They can carry us.
They will build us.
I don't want my splinter out.
I don't want my other splinter out.
We're going to be wood.

What in the world does that mean?????
Is this some kind of weird tree-loving poem I'm just not environmentally friendly enough to understand?