In ancient sanskrit, karma is defined as “action”, or action-reaction. Good karma is “right action”.
Eckhart Tolle says, “Karma is your reaction to your life situation”. The reaction is resistance. Resisting current reality does not lead to right action. It leads to stress and suffering.
He continues to suggest that rather than react, simply respond. This is Grace. Take action if action there is something to be done in the present moment. If nothing can be done, then simply allow it to be what it is, and relax.
Stuck in a traffic jam? We all know what ‘reacting’ looks like. Exasperation, tightness in your breathing or stomach, and even rage in extreme cases. What does responding look like ? Take a few easy breaths. Notice that you are simply sitting, probably very comfortably. Not that bad, really. If you need to let someone know you will be late and are able to safely call, then you can do that. Breathe, look, listen, feel.
Accept what is before you in the present moment. If action is called for, your authentic response (not a reaction) will be more creative and intelligent.