According to ancient mythology, Mercury (or Hermes in Ancient Greece) is a messenger of the gods, a guide of souls to the underworld, patron of merchants, money changers, speakers, travelers, pilgrims, as well as scammers, liars and thieves. The young man with winged sandals was the most intelligent, clever, agile and inventive, could get out of any situation thanks to a brilliant mind and quick wits.
Mercury in Astrology
The planet Mercury in astrology describes the type of thinking, the ability to communicate with others, the ability to be quick and resourceful, witty and interested, it is easy to receive and transmit information. Responsible for the ability to learn new things, for short movements and transfers, information transfer means: letters, mail, phone, telegraph. Describes relationships with your immediate environment, neighbors, brothers and sisters.
Horoscope Position
The strength or weakness of Mercury in a particular natal chart can be judged by constructing a personโs horoscope. Modern astrological programs make this easy to do. If there are many planets in Gemini, including the Sun and Mercury, then the above characteristics will accompany the owner of the card throughout life. A similar situation if the third house is well aspected.
Mercury in its movement does not move far from the Sun (maximum 28 degrees) and is often located in the same sign with it, which greatly enhances the manifestations of both. The sun is a principle of ego, creativity and self-realization, a conscious demonstration of oneโs talents. The presence of Mercury near the Sun in the horoscope of birth suggests that the Mercury qualities will be clearly manifested in the character of a person. The disclosure of your "I" goes together with the use of their skills to quickly establish contact, receive new information, learn something new, etc.
An important factor is the location of Mercury in the sign and the house, although in its pure form the planet in the sign gives only an addition to the general picture of the horoscope.
The influence of the elements
In different elements, Mercury behaves differently. Air signs are related to him. In them, especially in Gemini, its natural characteristics are revealed in full: increased mobility (lively facial expressions, gestures), wit, eloquence. These are the most easily trained people, pleasant in communication, comedians and jokers, with wide connections and many acquaintances. In signs of water, Mercury has a greater susceptibility, imaginative thinking, imagination. What matters to them is not what is said, but how is said. The main thing for them is the emotional content of the conversation and the intuitive feeling of the interlocutor. Fiery Mercury does not listen to anyone, generates endless ideas and theories, abstract and independent thinking. But for earthly signs, the practical application of knowledge and skills is important, concrete thinking, logical and devoid of any illusions, they are patient and systematic in the development of new material.
Mercury in Sagittarius
Sagittarius carries the energy of the fiery male mutable sign. Through speech, the energetic and assertiveness of fire, the desire to prove his case, indulges in male immunity to the opinions of others. Since Sagittarius is a representative of the mutable cross, like Gemini, for Mercury in this sign is something akin. People with Strelitzov Mercury have an inherent mobility of thoughts and ideological directions. They are included in social processes, inspired by a new theory, but gradually lose interest and are looking for something new. The foundations of worldview and beliefs are changeable in nature, depending on current trends.
The sign of Sagittarius is located directly opposite the sign of Gemini, where Mercury has maximum strength. So Mercury in Sagittarius is in exile. But this, of course, is not evidence of stupidity. Jupiter, as the owner of Sagittarius, defines the range of tasks and ways of expressing a fast planet. The nature of mental activity, the construction of phrases, the manner of talking, answering questions, gesturing with hands - all this will be painted in Jupiterian tones.
In contrast to the twin, Mercury in Sagittarius does not have the natural ability to quickly make contacts, easily work with information, make innumerable acquaintances or shine with eloquence. Easy conversation, the ability to get out of a situation, profitable to sell something are problematic for him.
In everyday affairs, such people are also poorly versed. Everyday worries seem small and insignificant to them. The personal lives of acquaintances or relatives are of little interest to them. This is because Jupiter does not attach importance to small details; for him, the general integral picture of the world is important. These are great masters to talk about high, spiritual, religious, universal. The philosophical mindset generates a lot of abstract ideas for improving the life of society, which are often difficult to apply in practice. The thinking of Mercury in Sagittarius always has elevated, large-scale goals. An idealistic orientation based on a sincere belief in goodness and justice can be traced in thinking.
If the Sun in Sagittarius is located next to Mercury in Sagittarius, then the person has a predominant interest in the structure of the world order, the Universe, or he takes an active social and political position, seeks to expand the influence of his personality, the subject of conversation is his authority and success, the breadth of his views.
Mercury in this sign gives its owner the ability to learn various cultural traditions, learn foreign languages, generalize the principles of spiritual development, morality and law.
Mercury in Good Aspects
The owners of the well-aspected Mercury in Sagittarius are pleasant interlocutors, optimists and fun people who can maintain a conversation on a wide variety of topics, but often find it difficult to express their thoughts freely, tongue-tied and sometimes rude. They sincerely believe that speaking the truth and advocating justice is the most important thing in communication, even if the opponent is not inclined to listen. It is important for them not only to convey information to the interlocutor, but also to convince, to impose their worldview. If the question is about faith or religion, then communication comes down to the fact that they are persistently trying to convert the listener to their faith. They love to moralize and teach. Good mentors that inspire optimism and provide comprehensive support.

The aspect with the Moon speaks of a good imagination, with Mars - the ability to quickly think and make decisions, speech is a bit sharp and loud. Saturn, aspecting Mercury, makes him think logically and concentrate, isolate the main thing from the flow of information. Uranus inclines to build encyclopedic knowledge, insights. Pluto carries a transformation, a revolution in mental activity.
Interesting nuances
Mercury in Sagittarius for men can testify to a love of travel, the ability to trade with foreign partners. The path to success is directly related to the ability to make informed decisions. Sometimes they promise more than they can do, because they themselves believe in their promises. Mercury in Sagittarius in a woman speaks of the breadth of her hobbies, ability to foreign languages, perhaps her relatives are connected with abroad. Children with this position of Mercury are willing to learn new things that are of interest to them. Mercury in Sagittarius in a child makes its owner restless, mobile, addicted. These are eternal "things to do," who are interested in everything in the world.
Mercury Reverse
At certain times, Mercury is retrograde. The retrograde phase of the movement of a fast planet does not contribute to the study of a new one, but rather inclines to reconsidering past contacts and working with already known information. The presence of retro Mercury in the horoscope suggests that the cardholder often returns to past experiences to complete unfinished business. In learning new things, one has to return again to the material covered, and while making short trips, one has to return again to certain places. The reverse phase of the movement indicates a revision of the functions of Mercury in order to bring the work begun to its logical conclusion. Everything should be assimilated and laid out on the shelves of the brain in order to start learning something new, plan trips and contacts during the transit of direct Mercury.
Mercury retrograde in Sagittarius
In the sign of Jupiter, retro-Mercury is not only deprived of its mental simplicity and clarity, but also slows down its movement, making a reverse move. For people with retrograde Mercury in Sagittarius, it can be difficult to find words to correctly express their thoughts. They are not talkative, silent, in understanding the elementary they often find themselves in similar situations, they prefer old acquaintances and connections to new ones, work with information in a proven way and often return to previously studied material. But the thought process is not so chaotic and abstract, concentration is required to bring current thoughts and deeds into order.