हस्तौ वै ग्रहः स कर्मणातिग्राहेण गृ-हीतो हस्ताभ्याँ हि कर्म करोति ॥ ८ ॥
In plain words
The hands are a grasper — seized by action itself, their own over-grasper. Because it is with the hands that we do what we do.
Close to the Sanskrit
The two hands, indeed, are a grasper; it is seized by action as the over-grasper; for by the two hands one performs action.