Arjuna's confusion has gone so deep that he can no longer tell which outcome would be better — victory or defeat. We do not even know, he says, whether it is better for us to win or for them to conquer us. The very people whose death would make life unbearable are the ones standing across the field.
Think of a family dispute so bitter that no outcome feels like a win. If you prevail, you have crushed someone you love. If you lose, you have failed your duty. That is Arjuna's predicament, and it is not an abstract puzzle. The sons of Dhritarashtra — Duryodhana and his brothers — are his own cousins.
This shloka reveals that Arjuna's crisis is not just emotional but also intellectual. He genuinely cannot reason his way to a decision. It is precisely this paralysis — where both heart and mind have stalled — that makes the Gita's teaching necessary.