This is the . . . if one is pure, then the effects of dharma becomes manifest very quickly. Na māṁ duṣkṛtino mūḍhāḥ prapadyante narādhamāḥ (BG 7.15). Kṛṣṇa says in . . . that those who are too much sinful, sinful, simply their life is sinful, duṣkṛtinaḥ . . . duṣkṛtinaḥ. Kṛti. Kṛti means one who has got good brain. But duṣkṛtinaḥ, but the brain is applied for mischievous activities. For mischievous activities, it also requires good brain. And similarly, for pious activities, that also requires brain. But those who are applying their brain for mischievous activities, they are called duṣkṛtinaḥ.
So duṣkṛtinaḥ . . . na māṁ duṣkṛtino mūḍhāḥ. Why they do so? Because they are mūḍhāḥ, rascals. If one has got good brain, he should apply it for good work, but sometimes they are utilized . . . just like a thief, he has got good brain. A rogue, he has got good brain, but he's applying for mischievous activities, for making people unhappy. That is not the right use. Jñāna-khala. They are called jñāna-khala. One who has got nice knowledge, it should be utilized for better purpose.
So the effect of Kurukṣetra, dharma-kṣetra, was visible in the person of Arjuna, not in the person of Duryodhana. That is the difference. Therefore he was crying: "So I am put in such a position that I have to fight and I have to kill my brothers, my nephews, my grandfather." He was too much affected. Although it is weakness, but it is not actually weakness, it is compassion. Arjuna was not a coward, neither he was less heroic than the other side. But out of compassion, because he was devotee.
Devotees, they are para-duḥkha-duḥkhī (Vilāpa-kusumāñjali, 6). The, the symptom of a devotee is they are unhappy by seeing others unhappy. That is the symptom of devotee. Generally a person, if he sees somebody happy, he becomes unhappy. Mātsaratā. That is the world situation. If I see my brother is very happy, he has improved his material condition, then I become unhappy—"He has advanced so much, and I could not do so." This is material civilization.
Material civili . . . envious, gṛhamedhī. Everyone is envious. Either you take person to person or neighbor to neighbor, their sympathy is lip sympathy. Actually, everyone is envious: businessman to businessman, nation to nation. This is material world. Therefore spiritual advancement means for person who is not envious. Not envious.