Sun square Mars

What does Sun square Mars mean in the natal chart?

Your Sun and Mars rub up against each other, which gives you real drive, but it can run hotter than you mean it to. How you want to come across and how you actually act in the heat of a moment don't always line up, so you can find yourself in conflicts you didn't fully choose. Watch the urge to fire back before you've thought it through and then feel bad about snapping at someone who didn't deserve it. That same force, once you learn to aim it, is exactly what gets things done when other people stall.