9th house is a sign of Libra and the 9th lord is Venus which is badhak and also yoga karaka for the Aquarius ascendant..
Aquarius is all about scientific personality/a humanitarian soul, and gain/achievement.
When your thought process becomes territorial with the thought process of partnership, support of other people, understanding things without logic, and spending money without a second thought…all the traits become badhak
Venus’s relationships with gulika or khara planets can cause problem during dasha /antardasha..the kind of problem depend upon the house their position in the chart…