I am pretty sure inner peace can be one helpful tool in recovery. I believe for myself inner peace is becoming more of a reality now that I AM sober though. I am pretty sure the drinking was a major cause of not having inner peace along with a long list of other problems.
Drinking was the bad, abusive and unhealthy girlfriend I was in a relationship with that I should have gotten out of way sooner. I always had a reason of how I could make it work, moderation, counting drinks. Pretty much that was all a big waste of time which caused me more pain.