Mars Synastry: 1st House Overlay in Astrology


1st House Mars Synastry

Mars brings an assertive, aggressive, active, challenging and energizing influence to your 1st house.

The 1st house is about appearance, behavior, attitude, mannerisms, approach, outlook, exterior, image, persona and personality.

Basically uncomplicated in their desires, this person usually has a very clear idea of who and what they want and will not be afraid to express this.
— Babs Kirby and Janey Stubbs, Love and Sexuality: An Exploration of Venus & Mars

Someone's Mars falls in your 1st house


hen you’re around the Mars person you’re more likely to act on your 1st house sign’s positive and negative potentials in a forceful and direct way. This is not a passive influence like the 1st house Venus overlay can be. Someone with Mars in Cancer falling in your Cancer 1st house, for example, might cause you to act defensively, be smothering and behave in an overly emotional way. With the overlay in Cancer, you might even find yourself crying more around the Mars person. The Mars person activates your 1st house and the first house has to do with your behavior and your point of view. Around the Mars person you might suddenly make it your business to let everyone know what your pet peeves are, what you find annoying, and what types of behavior bother you. You might find yourself using more Mars words like “irritated, annoyed, agitated, pissed, angry, etc…” However this person might also spur you to action and compel you to take more direct action in your approach to the world.

You could find yourself getting irritated by the Mars person’s actions. Whether or not they are trying to provoke you, you could feel that the Mars person is “in your face.” Or, it could be that, because their actions are right up front, from your point of view, you feel that it’s necessary to comment on everything they do and the way they do it.  It’s as if they are waving their hand in front of your face forcing you to watch what they are doing- but, they are not actually doing that, that’s just the way it seems. This person’s actions have a direct affect on your outlook; they impact your immediate environment. Their behavior is glaringly obvious to you. Because you can focus on nothing else, this person’s presence can aggravate you so much that you want to shout, “Stop doing that!”

The Mars person might just be annoying. You might get frustrated with this person more often than with other people. Positively, you’ll notice that you assert yourself more when the Mars person is around. Perhaps they inspire you to make your point of view known. They might support your approach. They can help get you motivated to act. Hopefully, your new self-assertive expression isn’t entirely directed toward getting the Mars person to behave however it is that you think they should be behaving.

In a sexual relationship, this overlay might inspire you to be the aggressor. This is the type of overlay that can bring a love of “the chase.” The same energy that can make you focus on how irritating this person is can also make you focus on how sexy this person is. Mars is the planet that rules conscious sexual desire. The Mars person triggers something in you that makes you want to pursue and win them. The Mars person brings out the aggressive side in you. You feel more confident than usual with the Mars person. They have qualities that you identify with, but with Mars, in a sexual way. Once you get the Mars person you still have to find a way to sustain the initial excitement.

Your Mars falls in someone's 1st house


ith your Mars falling in someone’s 1st house, if you wanted to, you could easily irritate the 1st house person. You bring out the 1st house person’s aggressive side. The 1st house person might choose to battle you using those aggressive impulses, or they might feel aroused by you. The 1st house person could also feel compelled to address the way that you act. They might continually tell you to sit up straight and put your shoulders back, and no matter how well intended, it bothers you. You might feel that your every action is under scrutiny by the 1st house person and that nothing you will get past their observation. Your Mars is at the very forefront of their outlook- it’s right in front of their eyes.

Because you cause the 1st house person be more assertive, you can help them accomplish more in their life. You can encourage them take a direct approach in getting what they want. By triggering their aggressive side you can also call them out on their less flattering behavior. Be careful that you’re not just being antagonistic.

Sexually, you might feel excited to have someone’s attention so singularly focused on you. You might feel that your sexuality is being “recognized” for the first time. The 1st house person might see you as “sex on a stick.” The 1st house person’s attention might help you become more aware of your own sexual potential and your own attractiveness. You might enjoy being around the 1st house person because in their presence you feel more vital and sexually desirable than you normally would. However, you might also feel that the 1st house person focuses on your more masculine characteristics, or overemphasizes your macho qualities, perhaps missing some of your softer personal traits. This person might push you into an overly masculine role and yet still try to “out-man” you, regardless of your sex.

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Mars Astrology Keywords

  • Anger & Rage
  • Force & Coercion
  • Drive & Will
  • Competition & Rivalry
  • Impatience & Impulse
  • Guts & Daring
  • Sharp Edge of the Blade
  • Initiating & Pioneering
  • Antagonizing & Bratty
  • Straightforward & Uncomplicated

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1st House Astrology Keywords

  • Appearance, Demeanor, & Mannerisms
  • Force of Personality
  • Your Affect On Others
  • What's Right in Front of Your Face
  • How You Take Initiative
  • How You Show Up & the Circumstances of Your Birth
  • Approach
  • First Impressions
  • First Focus & Immediate Pressure
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