Dharma vs Karma

Kriya as per dharma gathers no karma. Activity as per norms of rightful conduct leaves no residue in the mind. 

There is no residue when the mind knows that it has acted as it should have, checked out against some reference list. Before choosing an activity, before making a response, let us stop and think. Will it leave a residue in the mind? If it seems so, let us not do that action. Delve deep and see what is being violated from that reference list. Is it a basic value? Will it cause harm to somebody? Or is it just some mental position being opposed? If it is just a position, we can try to free ourselves from that position. If we cannot then let us not do that activity. No activity is worth the residue. 

There will be times when we are able to do neither -- not stop the activity, nor let go of the position. Let us just be aware of the clash and concentrate on sadhana. As the mind clarifies, one of the two will slowly dissolve.