What Mercury in Pisces/the 12th house Reveals about Your Chart

All about Mercury in Pisces or in the 12th House

Mercury is the ruler of information, communication and our intellectual processes. Whatever sign and house Mercury was occupying at your time of birth influences the topics you love buzzing about and how you are most likely to articulate ideas. This may be an area of life where you easily speak up or have strong opinions. Where do you feel most comfortable socializing or with who? Interactivity is Mercury’s domain, showing the types of friends to which you gravitate.

How Mercury influences your chart

Natal Mercury or Mercury sign

Whatever zodiac sign and house Mercury was orbiting through at your time of birth determines your “natal Mercury” or “Mercury sign.” More specifically, this will guide you in the following ways:

  • Communication: What’s your conversational style? How do you articulate thoughts?
  • Mobility: Plane, train or automobile—how do you like to get around?
  • Systems: How do you organize data and stay on top of the moving parts?
  • Thought processes: How do you process ideas and make decisions?
  • Social life: What sorts of people do you easily click with?
  • Hobbies: What do you enjoy doing in your extracurricular time?

Mercury is one of the inner planets, along with Venus and Mars. Because of its close proximity to the Sun, it zips through all twelve zodiac signs in 88 days, spending an average of three weeks in each one.

What’s your Mercury sign? 

Use our cosmic calculator to discover what zodiac sign and house Mercury was in when you were born. To accurately determine the house, you will need to know your birth time.

What if the zodiac sign and house are different?

This is common! Read both the sign and house description below. Do these interpretations pull you in two different directions? That’s not unusual. We human beings have range. Astrology is an interpretive dance, a tool which provides a fascinating layer of self-discovery. Do some “astro mixology.” Reflect on how you can work with both energies to enhance your life.

Find your Mercury Sign

Calculate Yours!

Special positions of Mercury


Mercury turns retrograde 3-4 times every year for a span of three weeks each time, so it’s not unusual to be born with this planet in reverse. You may have to work harder to muscle through its lessons, but once you nail this planet’s energy, your additional effort may actually lead to a rock-solid mastery of working with Mercury in your life. 

Domicile: Gemini  

The planet’s home base, an easy flow if placed here in the chart 

Detriment: Sagittarius  

Opposite sign of home base, may need to work harder to integrate the planet’s energy if placed here in the chart

Exalted: Virgo 

The planet’s most powerful position; indicates ease and added fortune with using the planet’s energy if placed here in the chart

Fall: Pisces 

Opposite sign to the exalted position, can indicate struggles with utilizing the planet’s energy if placed here in the chart

Mercury in Pisces or the 12th House

Dreamweaver! With Mercury in Pisces or the ephemeral 12th house, you cast a spell over the world, transporting people into a fairy tale through your words and presence.

Traits of Mercury in Pisces

Creatively, you draw inspiration from a deep (and multidimensional!) well. Your imagination is otherworldly! A dreamy, abstract thinker, you might even struggle to verbally articulate your ideas. It’s easier for you to go behind the scenes and build things, then trot them out for show and tell. 

Living in linear time can be a struggle for this sensitive Mercury in Pisces placement. The quantum field is your playground. Ideally, you’ll create a career and lifestyle that allows plenty of unstructured flow.

Many of your best ideas come when you’re sleeping, daydreaming or in a meditative trance. The Mercury in Pisces mind will digest and integrate ideas while you rest or simply stare out the window. This is difficult for most people to understand—and when you feel like you’re being watched or judged, you can totally shut down.

Mercury in Pisces needs safe places

To learn and discover, you must be in safe spaces where you can ask questions and lose track of time. Try making vision boards so you can create your world with pictures. Meditate often, with music and guided recordings, or in a silent sacred space you create. You do great work in a beautiful, serene and spiritual setting—out in nature or in your favorite peaceful sanctuary. 

As a friend, you are boundlessly compassionate, and could be described as having a bleeding heart. You can get trapped listening to people’s sob stories or even sacrifice your own happiness to help a loved one get out of a jam. Without realizing it, you can be a psychic sponge, absorbing the emotions and energy of a room. Clear yourself regularly with sage, crystals and Epsom salt baths.

When hurt, you may lapse into a victim mentality, sinking into helplessness and overwhelmed despair. Although it’s hard for you to ask for it, you DO need lots of support and reassurance through emotional ups and downs. Learning to create give-and-take friendships—and cast off energy vampires—will restore your faith in people. 


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