sorry it took so long to get back to you on that, but yes, I think I have come upon some data to support a spiritual focus in psychotherapy. I went to a Mind-Body medicine training with Dr. James Gordon last fall and there was a large emphasis on the use of spirtuality in a number of ways, and some evidence to support it.

One astonishing example I heard was an experiment in which patients were prayed for, and the patients didn't know they were being prayed for (blind study), and the ones that were prayed for did better than those receiving the same standard of care without prayer.

Meditation is on some level spirtual, and there's a ton of research supporting its use with cancer patients.

I could go back in my packet and share others, as well as the sorce of these infobytes, but those two stood out for me.