What Mercury means
Mercury is the style of thinking, speech and learning: how a person gathers information, argues, jokes and agrees. This is not the level of intelligence but its manner: fast or thorough, in words or diagrams, in conversation or in silence.
Tradition gives Mercury everything connected with exchange: letters, agreements, trade, roads, the close circle — brothers, sisters, neighbors. It rules two signs: in Gemini tradition sees its air side — gathering and exchange, in Virgo its earth side — sorting and checking.
Mercury in the signs
Mercury never moves farther than 28° from the Sun, so it stands in the Sun's sign or in the neighboring one. For half of people it is in the Sun's sign and thinks in the same element, for the other half in the neighboring sign, and neighboring signs are always of different elements. Mercury's elements are read like this:
- In fire signs (Aries, Leo and Sagittarius) — thinks aloud and fast, the conclusion appears before the arguments; learns by trying right away.
- In earth signs (Taurus, Virgo and Capricorn) — thinks step by step and through examples, trusts what's been tested; learns by writing down and repeating.
- In air signs (Gemini, Libra and Aquarius) — thinks in conversation and links ideas to each other; learns by discussing with others.
- In water signs (Cancer, Scorpio and Pisces) — thinks in images and impressions, remembers the intonation better than the wording; learns from a living example.
In detail — Mercury in each sign, with a “not about you” sign and a check on yourself:
Mercury in the houses
Mercury's house is the sphere a person thinks and talks about most: in the 3rd — the close circle and study, in the 6th — work and details, in the 9th — distant topics and worldview, in the 10th — public speech and profession. Mercury stays close to the Sun, so it usually stands in the Sun's house or the neighboring one.
Mercury retrograde
Mercury goes backward three times a year, for 20–24 days, and on your birthday that was the case for about one person in five — 19.3%. Tradition reads a retrograde Mercury in the chart as thinking in catch-up mode: the most precise answer comes after the conversation, not during it. For Mercury retrograde in the sky and the scare stories around it, see the article on Mercury retrograde.
When Mercury goes backward — station dates, Moscow time →
How to check it on yourself
Each statement below may turn out to be false about you — that’s how it’s written. Check it against your past, and write your answer down before you compare it with the chart. The first item checks the calculation itself, the rest — the interpretation.
If you look at Mercury in your chart
What should match. It stands in the Sun's sign or in the one next to it: by our measurement for 1950–2030 Mercury never moved farther than 27.8° from the Sun. This is true for everyone — it's a property of the orbit, not of character.
When it’s not about you. Mercury one sign away from the Sun or farther — the wrong date went into the calculation, or the program made a mistake. This is a check of the calculation, not of the interpretation.
If you know the element of your Mercury
What should match. Recall the last three times you needed to quickly figure out something new: a program, a law, a recipe, a route. In at least two cases the way of this element helped: fire — try it right away, earth — a step-by-step breakdown with notes, air — a conversation with someone who knows, water — a living example. By chance this matches in about one case in six.
When it’s not about you. In two cases out of three or more the ways of other elements helped — this isn't about you.
If Mercury in your chart has ℞
What should match. In an argument or at a meeting the right words come later than needed: the most precise answer is found on the way home.
When it’s not about you. If in an argument the right words come at once, not on the way home — this isn't about you. Mercury retrograde occurs in one in five people, so a match is a reason to look closer, not proof.
What retrograde motion is and where in the sky it happens for each planet — on the page of all planets. How we check the rest — the site’s method.