The action is considered of a group of totally positive units of a real cubic Galois field on the border of convex hull of its totally positive integers. In case of so called regular fields the fundamental domain of this action has a simple description.
The point of the article is the idea that an activity, an image and a word are the means to spiritualize a body and to externalize spirit. Each o them is a heterogeneous entity: a kind of metaform where both internal and external forms appear. E.g. an activity being considered as an external form includes an image and a word. The same structure is peculiar to a word and an image. Because of such a structure an activity, an image and a word are as much corporeal as they are spiritual. A play of their external and internal forms is extended to interrelationship of the body, the soul and the spirit. It is argued that such a model of reasoning may be of use for psychotherapeutic practices.
Max Weber. Basic concepts of sociology. Unabridged translation.