A thing to remember here is that these posts are strictly meant for the particular planet position. Like, today we are looking at Mercury in Sagittarius, so the description given here may change for you if your Mercury is although in the sign of Sagittarius but with conjunction with or aspected by other planets.
So, lets see what Mercury can do in Sagittarius without any conjunction or aspect from any other planet. 1st lets see what these 2 things represent --
Mercury represents communication skills, marketing, calculative ability, younger siblings, hobbies, skills with hands, intelligence, quick decision making, logical thinking, youthfulness etc.
Sagittarius is the 9th sign of zodiac belt, hence it represents many things related with the 9th house of horoscope like Religion, Knowledge, Wisdom, Higher Learnings, Gurus, Teachings from your Father etc. Besides it also represents Coaching, Universities, Professors and Preachers, Higher Wisdom, Written Law of the Land etc. Sagittarius has next set of 2 and half nakshatra which are Mula, Purva-Ashadha and Uttara-Ashadha. Sagittarius' lord is Jupiter.
So, when Mercury is coming into Sagittarius then this person's speech and communication style becomes very philosophical and religious. Their communication is also full of optimism and they are able to convey their hope to the needy people. As Mercury is about collecting information and communicating it, these people love to read and know about philosophical and religious stuff and then communicate about it. In normal walk of life, these people are seen as financial advisers or finance planners as Sagittarius is ruled by Jupiter, which represents finance and wealth and Mercury is natural counselor. But the nature will always be like preaching and teaching. We can say that they are born preachers. As Mercury is also a business man, at certain point of time in their lives, they will look to make business out of their philosophical and higher learning. Overall, a born preacher, teacher and adviser.
Again, impact of Mercury's effect in Sagittarius will be controlled by the various nakshatra Mercury might be in. Like, if Mercury is in Moola nakshatra, its lord Ketu's position will effect Mercury. If Mercury is in Purva-Phalguni nakshatra, then its lord Venus will impact Mercury. If Mercury is in Uttara-Phalguni nakshatra, then its lord Sun will impact Mercury.
As discussed above, we have to look at position and condition of lord of Sagittarius, i.e. Jupiter, to finally come to know what is going on with this Mercury. So, overall reading is much more necessary than a particular planet in sign position.
Tomorrow, Mercury in Capricorn.
Vishal S Saxena - Astrologer