This merit is being misused to improve the process of eating, sleeping, mating and defending. If you improve this process of this eating, sleeping, that does not make you very advanced in civilization. The animal is also eating. Whatever, according to the nature, they are destined to eat, they are eating. Similarly, we are also eating, but we are not eating according to the, I mean to say, indication of nature.
Take, for example, our teeth and animal teeth. There is difference. Our teeth . . . this is scientific. Our teeth is meant for eating vegetables and fruits. It is so made. If you eat continually vegetables and fruits, you'll not be attacked with pyorrhea. But if you eat meat—your teeth is not meant for eating meat—you'll very soon be attacked with pyorrhea because breaking the laws of nature. This is one example.
Similarly, in our eating, sleeping, mating and defending we are using so many wrong things. Just like formerly there was also fight. That fight was being conducted with arrows and bows. So if you want to kill your enemy, you'll kill your enemy, not others. Other innocent people will not be killed. But nowadays, for defending, we are using atom bomb. So many thousands of innocent men are being killed.
So therefore to manufacture or to invent such weapons, lethal weapons, is requiring very good merit—but duṣkṛtina, for committing sinful activities. Even war, there is dharma. That can be also dharmāviruddha. Just like Arjuna fought. He fought dharmāviruddha, under the guidance of Kṛṣṇa. That is not ordinary fighting. That fighting is Kṛṣṇa, because he was fighting under the guidance of Kṛṣṇa. Personally he refused to fight, but when he understood that Kṛṣṇa wanted that fighting, under His guidance he fought. That fighting is Kṛṣṇa.