Mars in the 12th house people are learning how to make the unconscious conscious and tap back into their own agency and will. They may repress or misdirect anger, display great strength in dark times and can help lead others through the darkness They are protective of the sacred, the oppressed, and their own privacy and they often feel disempowered, like their life is not theirs to run, and are intimately aware of the reality that we can’t be entirely in control of our lives. They can be very defensive and have many unconscious motivations, and must learn to open up to others without defense in order to gain important insight into themselves.