It's a practice. It's about bringing your focus back to the present moment. When you're sitting in your car your head is probably swimming in the world of what happens when you step out. But you're not out yet, you're in your car. Breathe and remind yourself of that.
Think of it like restarting your computer when it freezes. You've overwhelmed your system, it's easier to reset than try resolve the issue through direct control.
All OF da RULES