Your sun sign tells you who you're becoming. Mercury tells you how you think, and for many people that turns out to be more immediately revealing.

Mercury is the planet closest to the sun, which means it's never more than 28 degrees away from the sun in any natal chart. This is why Mercury is often in the same sign as the sun, or in one of the two adjacent signs. If your sun is in Scorpio, your Mercury is in Virgo, Libra, Scorpio, Sagittarius, or Capricorn. Those are the only options.

What Mercury governs

Mercury rules thought, communication, short-distance travel, information exchange, commerce, and the nervous system. It describes how your mind works: whether it's analytical or intuitive, sequential or associative, cautious or fast-moving, verbal or visual.

Not intelligence. The sign and placement of Mercury don't determine how smart someone is. They determine how the intelligence operates.

Mercury through the signs (briefly)

Mercury in Aries thinks fast and communicates directly. Gets to the point, then moves on. Patience with slow or detailed processes is limited.

Mercury in Taurus processes slowly and methodically. First impressions stick. Conclusions are held with stubbornness once reached.

Mercury in Gemini is quick, curious, and draws connections across disparate areas with ease. Scatters attention but knows a lot about a lot.

Mercury in Cancer thinks associatively and emotionally. Logic is filtered through feeling. Memory is strong, particularly for personal experiences.

Mercury in Leo communicates with warmth and confidence. A natural gift for storytelling. Criticism of ideas can register as personal criticism.

Mercury in Virgo is analytical, precise, and oriented toward usefulness. Detail matters. There's a talent for editing and refining. The perfectionism can also block output.

Mercury in Libra weighs options carefully and communicates diplomatically. Sees both sides of everything, which produces fairness but can produce difficulty reaching conclusions.

Mercury in Scorpio investigates beneath the surface. The mind is drawn to hidden information, psychological depth, and what's not being said. Communication is often strategic.

Mercury in Sagittarius thinks in large patterns and communicates with enthusiasm for ideas. Details are less interesting than the overall picture.

Mercury in Capricorn is disciplined and practical. The mind works toward useful outcomes and is skeptical of ideas that can't be applied.

Mercury in Aquarius is inventive and unconventional. Makes unusual connections. Can be brilliant and also difficult for others to follow.

Mercury in Pisces thinks associatively and intuitively. Linear logic is less natural than imaginative leaps. Often gifted for creative writing and work that requires empathy.

Mercury's house

The house Mercury occupies tells you which arena of life the mind is most naturally active in. Mercury in the 4th is oriented toward home, family, and private life. Mercury in the 10th is oriented toward career and public communication.