AK and focal bhavas
Beside the whereabouts of Ak and Lagna Lord and what they aspect;
Rashi of the Lagna is the body so what ever is in there or Aspects it by Rashi Dirishti becomes a focal point.
Rashi of AK is the Body as well So what ever is in there or Aspects it also becomes a focal point.
The AK is there so why doesn't what AK rules become a Focal Point?
Yes, that is a good question, why does not Jaimini tell us that the the houses that the AK rules are a focal house? Maybe he expects us to figure it out. I find that it appears so.
Its a jaimini method of seeing which houses a person focuses on. Its simply based on the hosue the AK, or lagna lord join or aspect, or the house lord they join or aspect, as well as any house lords in or aspecting the lagna. Conjunctions are more important.
In that case, they are focused on finishing up these houses, relinquishing them, etc.