What it means
You work best alone, without witnesses; strength comes in quiet. Anger hides and breaks through later, unexpectedly even to you. It's easier to help others in secret.
The flip side is that suppressed anger turns into fatigue or tension in the body; opponents act covertly. It's hard to say openly “I want.”
This isn't about you if you express anger right away and openly and like working in plain view.
How to check it on yourself
Check it against your past — write your answer down before you look at the chart.
If your Mars is in the 12th house
What should match. Recall your last three strong irritations. In at least two you showed nothing at first, and the anger broke through later — over something else.
When it’s not about you. In two out of three the anger comes out at once and to the point — this isn't about you.
Your sign and house of Mars — in the free calculation: build my chart. How we check the rest — the site’s method.