A sharp word lands here. Krishna tells Arjuna: desire-driven action is far inferior to the yoga of wisdom. Take refuge in buddhi — in clear, discerning intelligence. Those who act only for results are kripanah, pitiable.
The word kripanah deserves attention. It usually means miser. A miser hoards coins and misses out on life. Krishna uses the same word for someone who hoards expectations about results — and misses out on the deeper possibility of action itself. Both are poor in the truest sense.
Think of two students. One studies only for marks. The other studies because the subject fascinates her. Both study, both may score well. But the second student's journey is richer, freer, and unshackled from anxiety about the report card. Krishna asks Arjuna to be the second kind.