Mercury Placement in the ninth house of chart.
This house represents the foreign travel, distance, father, spiritual pursuits, education etc. With Mercury in this house, there is a sharp increase in one’s spiritual inclination. The native can in fact become a spiritual speaker due to influence of Mercury in 9th house, which gives communication. The person however may have a tendency to over think about matters of little concern. Such a person is likely to have higher knowledge thus can be a good resource and source of inspiration for others.

If there’s a disaster happens to this native, he may use their intellect in lower pursuits. There is a good chance that the native may go abroad for higher education. Such a native should pursue language studies, as they are likely to be skilled at many. These people have a strong inclination towards matters such as religion, philosophy, meditation, foreign affairs, litigation and travel. You fit well for roles such as translator, teacher, spiritual leader, advertiser etc.

As a positive trait, person of mercury in the ninth house are always curious and hungry for knowledge and always want to know more. Those natives love to study and learn and do it not because they have to, but because they want to. The natives of Mercury in the 9th house enjoy exchanging ideas and personal philosophies with others. They also can be especially buoyant, enthusiastic and even inspiring in their communication. While these natives may not pay enough attention to details, they know it very well how to find a quick solution to any problem.
As a negative trait, natives want to learn about so many different subjects, they don’t have the time or patience to delve deep into everything that they study. So when it comes to specific details, they may often fall short of the mark. The natives should be careful not to make judgments without knowing all the facts.

As a conclusion to this, the people of Mercury in the ninth house can go high as they are very intelligent and wise. But, they should stay guarded against ego and the feelings of exaggerated self-importance.