How will I be used?

Blessed are the available.
Blessed are the conduits, the tunnels, the tools.
Deliriously joyful are the ones who believe that if
God has used sticks and rocks to do His will,
Then He can use us.

* On the front of a card I found a long time ago at Lifeway. I've always liked it and I think about it often as I am pondering God's purpose for my life...as I have been doing lately.