I was kicking around a few ideas in my head about embedding more of the Tekumel setting into rules, and stumbled across an idea.
The Tsolyani see the human being as being composed of five "selves" each having a certain amount of autonomy from each other, but together comprising an entire being. These selves are:
The body - the physical body in this plane. At death, it rots.
The mind - the intellect, ratiocination. At death, it goes to sleep, and hovers near the body.
The shadow - the dreamer, and traveler in astral projection. Intuition. At death, this dissolves
The "enemy" - the raw emotions, passions. The id in Freudian terms. At death, this goes back where it came from, to "the spaces between the planes". It's also the source for magical power, in part, but not the ability to use it.
The spirit - the ever living part, can be wounded by things like dishonor, in some versions, and this part is what journeys on after death, to eventually be reincarnated, or take up residence on some other plane.
So I got to thinking about how these could be used as stats, traditionally speaking. A few are reasonably easy to figure out. Body relates to the nexus of physicality, strength, agility, endurance, etc. Mind likewise ends up being the general intellect sort of stat. The "enemy" is already well defined as the source of magical power, and I think would also relate to things like bezerker behavior, as well as charisma and drive.
What I'm struggling with is how the shadow and the spirit fit into this.