9th lord in 6th H is 10th from 9th.
It is also a conjunction of 9th lord of luck and 5th lord of purvapunya bhav.
Also as told is exchange of 5th H L ( purvapunya bhav ) and 6th H L is ( Shad Ripu ). So this conjunction or exchange has multiple roles in the native's life.
Native may have a difference with his father and children. His luck is related with past life karmas. Native has to do lot of work for his children. His karma towards children will favour natives luck.
Thanks sir, आपने सब points detail में कवर किए। धन्यवाद।