This is the fabric of step 1 and how individuals are powerless over using the substance of their choice.  This then can transfer if they give up a particular substance to then cross addiction as a substitution .  Its almost a primal process of stimulus hunger which does not connect with adult decision making capacity.  The script is similar in its way of the construction being based on child survival strategies .  This is often unconscious and therefore one can be powerless over the drivers and emotional compulsions that process the life script.  If we think about patterns of behaviour that seem out of control emotionally it can mean we are in script. It can feel that we are being driven by something larger and more powerful then our own steering system.