I was just speaking last night after an AA meeting with a person who is in recovery and he was about ready to pick up and I asked him those two simple words, "Why now?"
He thought a bit before he started to reply about some personal problems he was experiencing and I just listened as he talked his way though them. He went on for a while and while he was doing it, he verbally rationalized his situation to me and pretty much provided himself the answer.
I did not have to say anything and he was sober for another day.