What Do You Think?

I've been reviewing my Theophostic prayer ministry manual, written by Ed Smith.  Dr. Smith says that much of what we call Christian spirituality and maturity is behavior that unbelievers can do.  Why do you think that is?  If Jesus lives in us, why isn't He making much of a difference?  I'm not trying to discourage anyone; I think there's a solution to this.  (Ed Smith does too.)