That's the sentence of the day for me right there. In my seminary class, we had a reading assignment of about 90 pages and this sentence appeared in an excerpt from a book that John Piper wrote called "Let the Nations Be Glad".
His contention and the main thrust of this reading assigment was that we really don't define "missions" in a correct way and we certainly don't understand it correctly.
Here's a thought to ponder for the day:
Missions (evangelism / people getting saved) IS NOT the ultimate goal of the church. Worship Is!