Mercury rules 3rd and 6th house is in 9th house in Sagittarius

Mercury in the 9th house of Sagittarius sign indicates that you have a deep interest in philosophy, spirituality, and higher knowledge. You are naturally curious, intelligent, and have a love for learning.

This placement also indicates that you may have a talent for communication, writing, teaching, and counseling. Your mind is perceptive and analytical, and you are able to grasp complex ideas quickly.

There may be a strong interest in foreign cultures, travel, and higher education. This placement often indicates success in academic pursuits, particularly in the fields of philosophy, law, or religion.

On the negative side, this placement may bring a tendency towards dogmatism, and you may become inflexible in your beliefs. You may also struggle with indecisiveness, as you have a tendency to consider multiple options and overthink things before taking action.

Overall, Mercury in the 9th house in Sagittarius is a favorable placement as it indicates a strong inclination towards spiritual growth, higher learning, and intellectual exploration.