Arjun sees that all the warriors are getting crushed by the teeth of Krishna's 𝙑𝙞𝙨𝙝𝙬𝙖𝙧𝙤𝙤𝙥𝙖𝙢 . Krishna says that warriors are killed by ME and you are merely 𝙣𝙞𝙢𝙞𝙩𝙩𝙖-𝙢𝙖𝙖𝙩𝙧𝙖 (an instrument) (11.33) and hence fight without feeling distressed (11.34).

Incidentally, Krishna didn't ask Arjun to leave battle even though Arjun's enemies are already killed by HIM. Instead, HE tells him to fight without stress. The clear indication is that 𝙣𝙞𝙢𝙞𝙩𝙩𝙖-𝙢𝙖𝙖𝙩𝙧𝙖 doesn't mean inaction. Inaction is another suppression that builds internal stress. Even if Arjun leaves the battle physically, the war wouldn't have stopped and instead, he would have carried the burden of war mentally wherever he went. On the other hand, Krishna indicates to drop the burden mentally and perform the 𝙠𝙖𝙧𝙢𝙖 (action) in hand as an instrument of 𝙋𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖 . This active acceptance is the best way to reduce our never ending stresses of day to day life.

For example, an electric wire conducts electricity to energise a bulb which gives light. The wire has two ways of thinking. One is that it gets filled with ahankaar as it is energising the bulb. Secondly, it can also think that it's just a 𝙣𝙞𝙢𝙞𝙩𝙩𝙖-𝙢𝙖𝙖𝙩𝙧𝙖 where electricity is generated by a turbine and the bulb is the one which is giving light. It is a fact that when there is a voltage difference, the wire doesn't have any option except to let electricity flow. Similarly, 𝙜𝙪𝙣𝙖𝙨 , like voltage difference, are responsible for our actions, and the recognition that 𝙜𝙪𝙣𝙖𝙨 are real 𝙠𝙖𝙧𝙩𝙝𝙖 (doer) is being 𝙣𝙞𝙢𝙞𝙩𝙩𝙖-𝙢𝙖𝙖𝙩𝙧𝙖 .

Instead of realising our status as 𝙣𝙞𝙢𝙞𝙩𝙩𝙖-𝙢𝙖𝙖𝙩𝙧𝙖 , our usual tendency is to make 𝙋𝙖𝙧𝙖𝙢𝙖𝙩𝙢𝙖 a 𝙣𝙞𝙢𝙞𝙩𝙩𝙖-𝙢𝙖𝙖𝙩𝙧𝙖 or an instrument that works for us to fulfill our desires. The key is to trust that we are one of the billions of instruments of this mighty existence.