Shit happens. Life is a wonderful, awful mix. In my heart of hearts I know that it takes both the wonderful stuff and the awful stuff to give life it's texture. I've faced a few calamities in my sobriety: unexpected job losses and my wife's painful battle with cancer to name a couple. I've watched others walk through much, much worse.
On any given day my recovery program has to be just good enough to get me through the absolute worst thing that can happen without picking up a drink. This is what I believe Bill meant when he says "matching calamity with serenity." If I can walk directly into the fear of whatever is happening without picking up, I have a chance to grow my faith. If I pick up, I forfeit that chance and probably make things a whole lot worse.
I have the power to resist the drink and walk through the fear if I do the things that invite God into the center of my life: I get out of myself by looking for another alcoholic to help; I dont' keep secrets, but share honestly about what's going on; I comb through the wreckage until I discover the black box -- my part and I make direct amends; I double up on my meetings to strengthen my connection with the fellowship.
When I take these simple actions I open up the channel to my Higher Power and my peace of mind eventually returns.