Let’s take a look at those things which matter here –
Mercury - It represents communication skills, marketing, calculative ability, younger siblings, hobbies, skills with hands, intelligence, quick decision making, logical thinking, youthfulness etc.
For Taurus Ascendant people, Mercury rules the 2nd house & 5th house of chart with its sign Gemini & Virgo. So, let’s look at 2nd house, 5th house, Gemini and Virgo too.
2nd house - It represents Family, Wealth, Speech, Family Lineage, Values, Mouth, Face, Throat, food you like to eat, Assets etc
5th house - It represents Creativity, Romance, Happiness, Hobbies, Children, Innovation, Sports, Movies, Stock Trading, Gambling and Betting, Risk Taking Ability, Education, Ancient Texts etc.
Gemini - It is the 3rd sign of zodiac belt, so it represents many things related with 3rd house of horoscope like, Communication Skills (either written, oral or even by sign language), Marketing, Business etc. It is a sign basically related with communications and business ideas. Gemini is divided into 2 and half nakshatra of Mrigashira, Ardra and Punarvasu. Gemini's lord is Mercury, which is significator of Communications.
Virgo - It is the 6th sign of zodiac belt, hence it represents almost all the things which are represented by the 6th house of horoscope like Debts, Diseases, Obstacles, Serving the under-privileged, Service Life, etc. Besides this, Virgo represents analytical or critical skills of people, being perfectionist and healing abilities. Virgo's basic representation is the lady coming in boat with wheat and herbs in her hands. So, Virgo is basically a sign of healing. Virgo consists of 2 and half nakshatra. i.e. Uttara-Phalguni, Hasta and Chitra. Virgo's lord is Mercury.
What will Mercury do in Aspect? – Now, Mercury can be sitting in any house of chart for a Taurus Ascendant person.1st of all, Mercury will take the energy of house of chart, it rules with Gemini & Virgo sign, and take it to the house where it sits. Then from the house it sits, it will throw its aspect on the 7th house from its place. Now, as Mercury basically represents Communication, Collection of Information, Travelling, Teaching, Counselling and Advising, Mercury will make person communicate and counsel people related to the house it is aspecting about the houses it rules and also will make person collect information about the house it is aspecting.
Things which I still can’t cover – Although, I am trying to make it a detailed analysis of planetary aspects but I still can’t cover few things like dignity of planet involved, like Mercury conjunct with other planets, if there are planets in 7th house from Mercury where it aspects in which case those planets will aspect back at Mercury and impact it, and planets aspecting Mercury from other houses. That’s why, no matter how detailed analysis you do in Astrology, there are still few things uncovered and that just shows the limits of Human Efforts.
Now, let’s see the meaning and impact of Mercury's aspect through different houses for Taurus Ascendant people.
Mercury in 1st house – Here Mercury is in Taurus. It shows a person who is either in Education field or Counselling. Most probably they will counsel others about Wealth and Finance. So, they can be Financial Counselors or Bankers. Mercury's aspect on 7th house also shows that person wants to communicate and counsel others about Wealth and Finance. They want to gain information about other people, spouse and Business. Here, Communication is important for relation to sustain.
Mercury in 2nd house – Mercury is in own sign Gemini here. Highly communicative people. It shows someone who utilizes his education to counsel people about wealth. They are also those Bankers or Finance Managers. Mercury's aspect on 8th house also suggests that person wants to counsel other people and serve their needs. 8th house also represents Other People Wealth. So again, it shows someone who is very good at Wealth Management.
Mercury in 3rd house – Mercury is in Cancer here. This shows someone who earns wealth through his education, communication, counselling and teaching. They can be seen in Teaching Profession generally. They are very calm and peaceful in their communication. Mercury's aspect on 9th house suggests that person wants to gain higher education in his field to improve his teaching/counselling abilities. He loves travelling and communicates with people on matters of higher education.
Mercury in 4th house – Mercury is in Leo here. This is a very much a person who works as a teacher at home or counselor at home. They can be very straight forward and authoritative in their speech. It also shows a Govt Spokesperson. Mercury's aspect on 10th house shows that person wants to communicate/counsel through his Career. He wants to learn how to improve his career and interaction with colleagues.
Mercury in 5th house – Here, Mercury will be exalted. This shows someone who is excellent in working with details and numbers. This can make someone excellent with Stocks, Shares, Finance and Accounts related work. They can be good teachers/counselors in this field. Mercury's aspect on 11th house shows person wants to communicate with others to serve a higher cause or social welfare. They want to learn to improve their networking skills. They become very good at networking with others.
Mercury in 6th house – Mercury is in Libra here. This shows someone who earns wealth by counseling people in their disputes/obstacles. So, this shows a very good counselor or diplomat. Mercury's aspect on 12th house suggests that they travel to faraway places to counsel people. They want to learn about Foreign Lands and Foreign People. They love to interact with Foreigners.
Mercury in 7th house –Mercury is in Scorpio here. This shows someone who earns wealth through business of counselling on occult and hidden matters. Relationship is based on Communication here, may be communication about Occult and Hidden matters. They can also be in a very technical field. Mercury's aspect on 1st house shows that communications or Business with others help them in understanding or finding themselves. So as always, 7th house works as an aid towards finding your true self in 1st house.
Mercury in 8th house – Mercury is in Sagittarius here. This person is all about going deep into higher education of occult, mysticism and hidden things. They will work like counselors of occult matters towards other people. They are very curious about higher education. Mercury's aspect on 2nd house shows that service to others bring them wealth. They are also curious to learn about how to gain and improve on wealth aspect of life. They also communicate about occult to family.
Mercury in 9th house – Mercury is in Capricorn here. This shows someone who is in field of Law and Govt. They are interested in higher learning related with Law. So, we can see a Lawyer from this position. They love travelling and interacting with people of different ethnicity. Mercury's aspect on 3rd house shows that they want to improve their communication and counselling skills. They will learn about improving it. They are good counselors.
Mercury in 10th house – Mercury is in Aquarius. This shows someone in career related with communication and counselling with large organizations or for a higher cause. They keep a good interaction level at work place with colleagues. Mercury's aspect on 4th house shows that with their career in counseling, they want to help people of home land. They also want to learn about creating communicative environment at home. This gives good relations with parents.
Mercury in 11th house – Mercury is debilitated in Pisces here. This shows someone who uses his high imaginative thinking, creativity and counselling ability to help others and bring social welfare. This can show someone as spiritual teacher/preacher with some spiritual group of people. Mercury's aspect on 5th house also shows that they want to educate others and they also want to educate themselves. They can be most creative people and great counselors/teachers.
Mercury in 12th house – Mercury will be in Aries here. This shows someone who works in a technical field in Foreign Lands or Foreign Companies. They can be very direct or even harsh with their communications. They need to work on their communications as 12th house is basically house of losses. Mercury's aspect on 6th house shows that they want to improve on their communication with people at work places. They want to learn to become a good counselor to others.
So, this is a basic idea of how Mercury's aspect will work in different houses for Taurus Ascendant people. Communication, Counselling and Travelling will remain the main themes with Mercury.
Hope this helps. Please feel free to post comments and queries, if any.
Vishal S Saxena – Astrologer