I found an interesting article which involves/discusses the wilderness experience as a result of becoming a Christian (or even re-dedicating one's self). I found this a welcome reminder that sometimes the wilderness experience can be a result of a positive lifestyle change as well as resulting from a place of barrenness in our physical and spiritual life which is a symptom of sin.
http://www.christian-faith.com/forjesus/wilderness-experience
And another link with yet another perspective:
http://www.peterhessbooks.com/newsletter/downloads/Vol-2-No-8.pdf