Mercury (Astrology)

What does Mercury mean in astrology?

In astrological planetary theory, Mercury (Latin: Mercurius) is the ruler of the mind and speech. It describes a person’s thinking style, communication style, and intellectual interests. The sign and house in which Mercury is located provides insight into how you absorb, process, and convey information.

Mercury in the Horoscope

Since Mercury is never more than 28 degrees away from the Sun, it is often in the same sign as the Sun—or in an adjacent one. Mercury in Aries thinks quickly and directly; Mercury in Virgo analyzes carefully and with attention to detail. The sign of Mercury significantly influences how you express yourself—both verbally and in writing.

Rulership and Assignments

Mercury rules the signs of Gemini (communication, diversity) and Virgo (analysis, precision), as well as the third and sixth houses. He is the messenger of the gods in mythology—quick, agile, and intellectual.

Mercury Retrograde

The phenomenon of Mercury retrograde is particularly well-known: several times a year, Mercury appears to move backward from Earth’s perspective. Astrologically, this is considered a time to review communication, plans, and decisions—less for new beginnings, more for revisions and reflection.

What does Mercury retrograde mean?

Mercury retrograde describes an apparent backward movement of the planet that occurs three to four times a year. In astrology, it is considered a phase for review, reflection and patience - less ideal for important new contracts or decisions.

Which signs does Mercury rule?

Mercury is the ruler planet of Gemini and Virgo. It is therefore the only planet that rules two signs of different elements (air and earth).