Or Not Be Used At All?

This evening as we sang the familiar hymn: Live Out Thy Life Within Me. The old song took on a new meaning for me in the form of this one profound phrase:

"Or not be used at all."

"Ready to have Thee use them, Or not be used at all."

That first phrase resonates so nicely our concept of how things should be. We're important. We must be used (or so we think). We don't even think twice about the alternative.
Maybe we should.

We're always ready to do something, be someone great. "I'll go", we say. "Anywhere, Lord". 

Just not nowhere.

But what if that's not His plan? 

Am I willing not to go? 

Can I stand to "not be used at all"? (emphasis mine)

Am I willing to be one of God's etceteras?

And most importantly- is He enough for me?