When Mercury is placed in the 9th house for a Virgo lagna, it is considered to be in a friend sign state. As Mercury is the lord of houses 1 and 10, it would take care of its own houses as well as house-related to profession, career, and success. Furthermore, being the natural karaka of houses 4 and 10, it would also take care of those houses.
The placement of Mercury in the ninth house suggests that the native will have an excellent ability to communicate his or her opinions with others. They will display communication skills that can earn them prestige or power. The ninth house represents higher education and philosophy; therefore the individual may excel in fields such as law or theology. They may seek enlightenment through their career.
Since the ninth house signifies long-distance travel, their communication talents may also open up opportunities for travel abroad. This placement indicates that they will benefit from any place which is situated north direction from their home base.
On a practical level, this placement has some peculiarities; one of which is that these individuals tend not to get lost in religious debates or faiths because they are driven more by logic than ideology.
The aspect of Mercury on the third house can make them curious and communicative with siblings or close family members. They’ll enjoy learning new subjects related to technology but might lack interest in traditional studies like philosophy or religion.
Mercury's presence suggests strong intellectuality and analytical abilities that go along with a tremendous love for knowledge without getting influenced by dogmas on all levels. Therefore people who have this placement show less trust towards science unless there are logistic proofs making scientific phenomena reliable.
Overall natives with this placement must learn observation through experience rather than hearing stories from others if they want to grow spiritually or attain professional achievements from different sources because Jupiter’s (the ruler of Sagittarius) knowledge cannot be exhausted through just theories or assumptions. This gives them a good chance to enhance their career later in life as their logical abilities and learning never diminishes.
In the twelve zodiac signs, each planet manifests differently. Mercury being closest to our earth than any other planet, it portrays how communication comes into life we live. Therefore, the placement of Mercury becomes significant when making astrological predictions.
To summarize, for Virgo Lagna, with Mercury in the 9th house in a friend sign state taking care of its own houses 1 and 10 while also being the natural karaka of houses 4 and 10 shows an individual having excellent communication skills that can earn them prestige or power. Their knowledge and intellectuality will be more practical and analytical than speculative or philosophical as suggested by the aspect on third house. Their thought processes are less influenced by dogmas which may open up a different perspective related to any subject they undertake in life allowing them to benefit from various sources of knowledge throughout their lives via new or different dimensions still unexplored until then, as they strive for personal growth on all levels.