Do the work in the first 9 steps, actively work with the disciplines of 10, 11, and 12 and a promise right smack in the middle of the fear inventory comes true...We let God demonstrate through us what He can do.
Remember, we are here to play the role that He assigns...and we don't get to decide what that role is.
I have heard Mark H. and Chris R. speak on this topic, it does not appear that they came into AA wanting to do that, lol.