MARS – Immature Energy
Mars is passive until aroused. It is passive in the sense of lethargic. It is misleading to see Mars as an active force.
It is, however, an uncontrollable force once it gets rolling. In the trinity of yang roles, the Sun is the father, Mercury is the eldest sun reflecting the father’s light, and Mars is the youngest son, free of responsibility. Mars is basically lethargic and will not necessarily do anything about a problem until it is prodded.
You may think of Mars like a 14-year old boy. It is very immature, but saying that it is immature isn’t to say that it is not powerful. That immaturity can be very sweet – the sweetness of a teenage boy – or it can also be very violent, very ugly. It can overreact.
Immaturity does not apply to personality. Immaturity is applied exclusively to the energy, not to personality. Once prodded, Mars energy quickly builds momentum at the expense of awareness. Its capacity to build momentum can result in a mindlessness where the most basic inhibitions can be overwhelmed by energy.
The Mars gates in your Human Design Chart, if triggered, can potentially express as an unaware and unbridled eruption.

I am a Human Design teacher, guide, and survivor whose path to purpose was forged through profound transformation. In 2012, a Stage 4 lung cancer diagnosis shattered the life I knew—and became the unexpected beginning of a deeper awakening. What followed was a journey through illness, the unraveling of a long marriage, and the quiet rebuilding of a self I had never fully met. Human Design found me in the midst of that unraveling—during a time of deep searching, blackouts of identity, and a hunger to remember who I really was. What began as a personal tool for survival and self-reclamation soon became a lifelong path. Human Design gave me language for what I had always felt but couldn’t explain. It helped me understand my energy, my wounds, my gifts—and how to live in alignment with my true nature.
Today, I teach Human Design not as a system of labels or rules, but as a living, breathing map back to the Self. My work is rooted in lived experience—because I know what it’s like to lose your way, and what it takes to come home to yourself. I specialize in guiding others through times of transition, awakening, and reinvention—helping them understand the unique blueprint they were born with, so they can navigate life with clarity, self-trust, and deep compassion. My gift lies in transmuting adversity into wisdom—and walking with others as they remember who they truly are.
Ruth Brennan is an IHDS Certified Professional Analyst, Certified BG5 Career & Business Consultant and Certified Teacher of Human Design. She currently lives in the beautiful Pacific Northwestern area of the U.S.