@Reconstructo,
(1) My stomach confines my body to the set of actions that will satisfy the stomach.
(2) Given our current economic model, my body must then act such that it remains employed.
(3) In order to remain employed, one must do as their employer directs.
(4) Due to (1) and (2), one must always have an employer.
(5) Ownership of an object is the ability to direct that object.
(6) Whatever the soul is, it is confined to the body (at least in this life)
(7) The body is an object.
Putting things together: My employer directs my body (an object), which houses the soul, and this is, by definition proposed in (5), ownership. Further, this is a necessary condition of existence due to (1), (2). Therefore, My employer owns my soul.