When a person has his natal Mercury in Sagittarius, it is considered in detriment and thus in its lowest potency. Sagittarius is located directly opposite of the sign of Gemini, where Mercury is at domicile. The other sign where the planet is also in detriment is Pisces, where Mercury has its point of fall too. Mercury in Sagittarius is a rather impractical placement to have in a natal chart, as the expansive traits of Sagittarius are not helping the planet focus and instead make its energies scattered. On the other hand, Mercury placed here can be rather fun for the native, who will even consciously prefer not to be serious in his ways of thought.
Sagittarius is the ninth sign of the zodiac, and has Jupiter as its ruling planet. Sagittarius is also the natural ruler of the ninth house, which rules higher meanings and philosophy, while also faraway travels. In addition, it rules religion, foreign cultures and languages. Here Mercury is in a rather awkward position. On the one hand, Sagittarius will make the individual very interested in learning and opening his horizons. On the other hand, it draws him to discover the big picture, without paying attention to the details at all. Thus, any theories such a person will get involved with, will many times not have some stable basis. This is quite natural to happen, as the native feels a strong urge to reach higher truths that will not hesitate to turn a blind eye even towards data that prove his theories wrong.
More information about Mercury’s potency in the signs can be read in the article about Mercury’s Essential Dignities.
We should note that Mercury needs less than a month to move to a next sign, and is the quickest moving planet, as it is located very near to the Sun. Also, it cannot be more than one sign away from the Sun sign, and has three times per year a period of retrograde motion, where it moves backwards in the natal chart for apparently 20 days. Mercury is impersonated by the ancient Greek god Hermes, who was the messenger of the gods and protector of commerce. The planet governs intellect and trade, data and communication, while also transportation. In addition, the darker traits of Mercury include rulership of lies, swindling and theft, which are also definitely an archetypical part of commerce. Mercury is a hermaphrodite planet, with a balance between its masculine and feminine side. For this reason, it is rather well-received in most signs, as it can adapt quite easily to any possible surroundings.
Natal Mercury in Sagittarius gives a very curious nature, as the individual is always ready to receive new information. He can be good in foreign languages, which he will usually prefer to learn without concentrating on details. For him, it will be a lot more important to be able to communicate in another language, than to use it well. Thus, it is not unnatural for such people to be able to speak quite a lot of languages, without reaching perfection in any of them. The same pattern will appear in all other knowledge that he absorbs. When learning philosophy or concentrating on spiritual knowledge, they will mostly browse all the systems and keep what they feel worthy through syncretism. They can literally amass information, with a natural consequence to also embrace junk data. Such people do not really use filters when absorbing information. They will not double-check if something is correct or true, neither its source nor whether it is contradictory with other parts of the great puzzle they form into a theory.
One of the most interesting traits that Mercury’s presence in Sagittarius will grant is a good sense of humor and the urge to make fun with words. Sagittarius and his ruler Jupiter are famous for being the grand optimists of the zodiac, and this definitely passes to the native’s speech. He will usually speak through positive filters, which makes them rather pleasant to other people. Such an individual will raise the spirits in a company, bringing a lot of smiles and laughter. His humor will make him frequently seem childish, which is not far from reality. Indeed, sometimes the result will be lack of seriousness even when important matters arise, when he must think and speak as an adult.
This natal placement of Mercury is very good for being somehow involved in communication about abstract ideas. It can also create spiritual or religious preachers, or elsehow prompt the native to transfer to other people the big picture that he has created about different ways of thought, which are very frequently foreign. Such individual may be very good in writing, especially texts that don’t follow a certain pattern but are rather free in their way of development. They can excel in literature, but will never be able to do detailed academic research and present a thesis with arguments and facts. They simply do not care about them, as they definitely put borders to their inner tendency of expanding speech without limits.
Sagittarius is considered to be the sign mostly connected to social justice. The mind of such a chart owner is considered rather fair, and they will treat people with whom they communicate with equality. People with Mercury in Sagittarius are good listeners, or at least pretend to be. They are always open to new ideas described by others – we already mentioned that their mind is a depot where great amounts of information can be stored. Yet, whatever they listen to can be taken lightheartedly, and they definitely do not pay attention to everything that they hear. They might appear to be listening, catch the general picture that the other person wants to transmit, but lose vital details and, in the end, receive it quite distorted. They do not do this on purpose though, it is just that their mind does not like concentrating on trivial parts of the subject but rather on its core, while also the abstract aureole of meta-meanings hovering over it.
Usually, Mercury in Sagittarius people can speak just for the sake of communicating. Sagittarian energy is a great channel, forming no obstruction in the data flow of their mind; quite the opposite actually, it enhances it. Such people do not enjoy silence, and will prefer to make fun and chit chat or enter various discussions, jumping from one subject to the other. They will many times start a conversation with a stranger by making a job. In addition, they will find it interesting to randomly meet up with foreigners to communicate. Such cultural exchanges are feeding Sagittarius, satisfying his curiosity and keeping the native away from getting bored.
As a child, the individual with natal Mercury in Sagittarius was having a lot of freedom in his expression, most of the times a direct effect coming from his liberal surroundings. The native’s parents encourage all types of communication and promote fun, so the child feels quite at ease when speaking. Usually, so much freedom makes him unafraid of making mistakes or even saying nonsense. There is no real punishment hovering over him, so he quickly develops a strong sense of humor. Sometimes, his humor can even reach some extremes. His sarcasm may hurt other people, or a continuous escalation of the power of jokes – when he is mocking someone even kindheartedly. In case you have this natal aspect, think a little bit about the usage of humor and fun in your lives. If you have hard aspects to Mercury by malefics and see your speech also containing darker emotions (jealousy, revenge, obsession etc), you should try to tame it a little. Do not forget that this placement for Mercury is indeed detrimental, no matter how positive and optimistic Sagittarius is.
The best remedy for taming Mercury in Sagittarius is somehow allowing the inflow of Capricornian/Saturnian energies in your communication. Saturn brings the opposite effect than Jupiter, so you should learn from the ring planet what you need to do to stabilize your Mercury. The answer is easy to find: examine your own self during some positive Saturn transits to your natal Mercury, with the best being a trine. See possible changes in your communication patterns, and understand which of them are somehow connected to the flavor of Saturn. Afterwards, consciously implement them whenever you see that your Mercury is out of control.
Each planets have a different effect on you, depending on which house and sign they reside in. In order to find out where they are located in your natal chart, you can use our free birth chart generator. Also, examine the aspects that they form with other planets in your chart. You will understand a lot more about the detailed role that they have in your horoscope.