US-P18.119ab ।US-P18.119cd ॥
In plain words
What the agent most wants to reach is called the object of action; the one who has that object in view is assigned the action. And where the object’s form is placed is called the instrument.
Close to the Sanskrit
That is called the object of action because it is what the agent most desires to obtain; the one who has that object is assigned the action. And that in which its form is placed is here called the instrument.