Mercury not only rules communication, it represents coordination. Thought processes, ideas, and sensory information from both conscious and unconscious sources all need to be coordinated and understood. Mercury analyzes, sorts, groups, and makes sense of things. How do we handle nervous energy? How do we express and convey our thoughts? How do we approach others and information in order to learn and exchange ideas?
Mercury in First House:
You are mercurial in appearance or manner, especially if Mercury is close to (within 10 degrees of) the Ascendant. You are restless, adaptable, changeable, easily distracted, versatile, and nimble. You enjoy talking but might often monopolize the conversation or fail to listen (you might be too busy thinking about what you will say next to truly listen). You have a mischievous and even precocious manner. Lively and interesting, you quickly adapt to new situations. In fact, you treat most new endeavors with curiosity and great interest. Your first reaction to new stimuli is logical and curious rather than emotional.
Mercury in Second House:
You have a very practical mind and intelligence, seeing the obvious, most logical answer to any predicament often well before others. You don’t like to be put on the spot or pushed into talking or coming to a conclusion. Studies are similar–you need to work at your own pace. You can be quite one-track minded at times, not very happy with multi-tasking, and often quite fixed in your opinions. Sensual stimuli is more relevant to you than abstract concepts.
Mercury in Third House:
This is an especially curious and inquisitive position for Mercury. You are generally very interested in reading, teaching, speaking, exchanging ideas, keeping current with the daily news, and perhaps gossiping. Your interests are many and varied, sometimes to the point that you barely skim the surface of any one topic. You are also very easily distracted and your attention span can be quite short. Quick to learn, you are also swift to share what you know with others. You can be very talkative when you have the chance. You can be a list maker, and often are quite involved in your community. Some of you can be quite nervous or fidgety.
Mercury in Fourth House:
You are an extremely imaginative person who dreams up all sorts of unusual ideas and plans. Your thinking is quite subjective, and in some cases narrow or biased. Some of you might enjoy working at home or keeping a lively, intellectual atmosphere in your home. You tend to retain a lot of information, and are usually quite interested in history, psychology, or politics. You are not quick to embrace a new idea or plan, and can be quite traditional in your thinking.
Mercury in Fifth House:
You tend to use your voice, whether written or spoken, as a means of creative self-expression. You can be witty and humorous, an engaging communicator, and a fun friend. You love playing games, especially ones that employ your intellect. You love tricks, jokes, plays on words, and mimicry. You might be skilled at impersonations. Some of you could be clever at lying. You might have a tendency to promise more than you can deliver, or overstate your case. In some way, you are very entertaining with the spoken and/or written word. Communication and intellectual rapport is most attractive to you when it comes to romance. In some cases, this can indicate more than one lover at once. Curiosity can be a strong motivator for making social and romantic contact. You might also take much pride in your children’s intellectual abilities and talents. You would make a good teacher, as you are very curious about how people learn and can come up with many ideas that allow you to teach others creatively.
Mercury in Sixth House:
You are a person who thinks of all the details that others often forget. Your mind is almost always turned “on” which can make you a little nervous. You are excellent at sorting things out, organizing, and making lists and associations. With your attention to the details and the mechanics, however, you might miss the bigger point! You are exceptionally helpful and others can count on you for making arrangements, researching, and offering advice. You truly love to feel useful. You might have some traits of a hypochondriac, as you notice all of the little aches and pains that others might overlook. Nervous tension could be at the root of many of your health complaints. You might frequently have to deal with duplicitous co-workers. Many of you are good at crafts, mechanics, or anything that requires good manual dexterity.
Mercury in Seventh House:
You have a great love of debate, if only to get closer to your own thoughts and opinions. Bouncing ideas off others helps you to make a decision, although coming to definite conclusions can be painfully difficult for you. You see the other side of the coin. You might often play devil’s advocate. Communication with a partner is craved, and you also love an audience for your own thoughts and opinions, but preferably a one-person audience, as you come alive verbally when it’s one-on-one. You can be quite skilled at keeping a partnership animated and alive with interesting tidbits, new ideas, and stimulating conversation. You can easily become bored in partnership if the lines of communication go down, even temporarily. You might attract partners who are not especially sincere or downright duplicitous. In order to put an end to this pattern, you might try to avoid scheming and overanalyzing in your relationships. You might also love to talk about and analyze relationships and marriage. You get off on new perspectives that partners or good friends give you.
Mercury in Eighth House:
You are especially curious about what motivates people, as well as all that is mysterious, taboo, secret, and psychological. You are excellent at analyzing people and getting at their motivations, as well as developing strategies. You may have a good mind for finances, medicine, and other subjects that require research and investigation. You speak with authority and others listen, having strong persuasive powers which should be used carefully. You tend to feel that everything we do and experience has a purpose. You have a great, investigative, and penetrating mind and you are excellent at developing strategies, as well as communicating them with others.
Mercury in Ninth House:
You are eternally curious and hunger for knowledge. You enjoy studying and learning, and do it not because you have to, but because you want to. You enjoy exchanging ideas and personal philosophies with others. You can be especially buoyant, enthusiastic, and even inspiring in your communications. While you may not pay enough attention to details, you are skilled at finding a quick solution to problems. You readily see the bigger picture and enjoy sharing your opinions and ideas. You get off on how information affects people’s lives, and you take great pleasure in learning that something you have shared or taught has inspired others to take action, experience something new, or make changes in their lives. Some of you might be too quick to offer advice, however, that might be lacking in thoroughness and practicality, or that you yourself don’t follow. You may be especially interested in learning about different cultures and lands.
Mercury in Tenth House:
You are good with language, and generally use this talent in your profession. You can have an authoritative air about you, or you are talented at communicating and negotiating with those in authority. You might have more than one job going at once much of the time, you could change your career directions frequently, or you could be attracted to jobs that keep you on the move. You require frequent changes of setting or activities in order to remain stimulated and challenged. You are skilled at bringing fresh energy to your conversations or to your job, perhaps because you need the stimulation.
Mercury in Eleventh House:
You are endlessly curious about people, group interactions, community affairs, trends, and teams. You are attracted to people who bring new ideas into your experience, and who have something novel to contribute on an intellectual level. You are very forward-looking and fair-minded. Fair play, impartiality, and unselfishness are important ideals for you. There can be many changes or fluctuations in your personal wishes, dreams, plans, and ideals. You might attract friends who come and go, or who are dishonest or duplicitous.
Mercury in Twelfth House:
You are not very quick to speak or communicate, especially in childhood, as you need to develop trust in your own abilities to express yourself. You make an excellent confidante–you are very discreet and secrets go into the vault. You might make matters too complex by overanalyzing motives or hunches, and then have problems acting on your intuition as a result. You are very attracted to symbols, sentiment, imagery, and paradoxes. You prefer not to focus on facts and learn best when ideas are presented visually, emotionally, or imaginatively. Learning to communicate clearly is a challenge for you, but one that might put an end to feelings of guilt, of being misunderstood, and to attracting unpleasant situations or duplicitous people into your experience.