The name 'passionate spirituality' may strike you as a bit abstract, but that is due to the principle-oriented approach. We had to find a term that would describe the most divergent styles of spirituality. As far as church growth is concerned, our research indicates that the important thing is not a church's style, but the degree to which faith is actually lived out with commitment, passion, and enthusiasm. This is what sets growing churches apart from non-growing ones...
The secret of passionate spirituality is (a) to develop a threefold orientation of being based on the Word, directed by the Spirit, and focused on the world, and (b) to bring these three dimensions into balance...
Excerpts from Color Your World with Natural Church Development - Christian A. Schwarz