In my Tradition...we call them attachments.

I have known many who have had them...mostly due to physical--or sexual--abuse (mainly as children) and then a journey to the dark-side by means of drugs and alcohol.

It happens when we relinquish self-control.

I have literally seen their eyes change color and heard their voices drop--when the thing riding them was not getting its way.

I've experienced this with strangers and even with those inside my own circle of friends and family--it is more common than people realize.

None of them were aware that they had an attachment.

None of them realized they were being driven to use by these things--except my Son and I believe that is only--because he is able to see them in others--like me.