Z is for Zone. We need to stay 'in the zone" and focus on our recovery. It is important to stay on track, although we have been known to take a detour now and then, if we are in our God's Care, He/She will bring us back to where we need to be.
For me, the Zone is a spiritual way of thinking and acting. It is the only defense I have against that first drink or drug. Drugs come in many forms, so I need to be mindful of my obsessive/compulsive thoughts and actions.