Alma - Chapter 19

I've recently been reading a book called He Restoreth My Soul by Dr.Donald L. Hilton.  Dr. Hilton is a Neurosurgeon.  He has researched the effects of addiction on the brain and discovered significant changes take place in the addict's brain.  Further he has learned that the changes are similar regardless of the type of addiction, be it alcoholism, over eating disorder, gambling, drugs or pornography.  Additionally, recovery brings another change in the brain, back to a quite normal state.  Now observe this verse:

6 Now, this was what Ammon desired, for he knew that king Lamoni was under the power of God; he knew that the dark veil of unbelief was being cast away from his mind, and the light which did light up his mind, which was the light of the glory of God, which was a marvelous light of his goodness—yea, this light had infused such joy into his soul, the cloud of darkness having been dispelled, and that the light of everlasting life was lit up in his soul, yea, he knew that this had overcome his natural frame, and he was carried away in God—

I get a feeling that the dark veil of unbelief had a physical component which literally alters the brain and effects the way we think.  In the case of Lamoni as in the case of those suffering from addiction, God must transform the brain to heal the damage we've done to it.  From personal experience, this a miraculous process performed by God and not a mechanical process we can accomplish by ourselves.  I have long loved that The Book of Mormon teaches these principles. 

Anyone who has completed the 12 Steps, in whatever form, knows that healing is only accomplished as a gift from God.  This process requires healing, enlightening and transforming change.  Conversion if you will.  Changed from the old to a new creature, having enjoyed and change of transformation of heart.  How wonderful this could happen to someone as wicked and Lamoni, or me, or maybe you.