The stats seem very similar to a table I once invented --
down the side:
strength
agility
durability

across the top
physical
mental
emotional
spiritual

So, identical to yours, with the addition of the three 'emotional' stats. These pertain to interpersonal things: emotional durability is probably the easiest to understand, and has something to do with sanity; emotional agility pertains to empathy, and emotional strength is about charisma and leadership.

Spirit was actually reserved for creative-type things (spirit a la "inspiration" rather than "ghost"). I think your spirit is closer to my emotion, really.

...will react to the rest later...