That Kṛṣṇa supported the Battle of Kurukṣetra, it was not whimsical declaration of war. Before declaring war, Pāṇḍavas, even Kṛṣṇa tried to stop it in so many ways. When Duryodhana clearly said that "Not even that portion of land which can hold the tip of a needle can be given to you without war..." They were..., Kṛṣṇa personally requested that "They are kṣatriyas.
They cannot take up the work of a brāhmaṇa or a śūdra or a vaiśya. So better you give them five villages only. Let the five brothers rule over them." He replied, "What do You say of five villages? Not that portion of land which can hold the tip of a needle I can give them without war." Therefore the war was declared: "All right. Decide by war." That was not a whimsical war manufactured and maneuvered by the politician. That is dharma-yuddha. When you encroach upon my right, there must be. Tena tyaktena bhuñjīthā mā gṛdhaḥ kasya svid dhanam (ISO 1). You cannot encroach upon others' right.
So the animal killer, they are encroaching upon others' right. This cows and goats, they are also living entities; they have got right to live. When there is absolute necessity, that is a different thing. But you cannot encroach upon their right of living simply to satisfy the taste of your tongue. That is the greatest sin. Similarly, illicit sex. One has got wife and he is having illicit sex with other woman, that is..., that is crime. "You want to satisfy your sex? All right. You have got legitimate wife." "No. I want to satisfy my senses." Therefore illicit sex is sinful. You have got many other foodstuff. Why should you satisfy your senses by killing some other right of living?
Therefore it is... Why it is sinful, anyone can understand. Just like if I have no money, that does not mean to secure money I shall take your money. Then I am thief. You cannot say, "Oh, I have no money. This man has got so much money, therefore I have taken some money." Will the court excuse you? Even if you have no food, you cannot encroach upon other's right unless you are sanctioned.
Therefore according to Vedic system, the meat-eater is given chance by sacrificing an animal before some demigod. Not free slaughterhouse. No. That you cannot do. Undergoing that process, some day he will come to his senses that "Meat-eating and killing of animal is not good." Because there are so many mantras. If you understand mantras, the mantra, when a goat is sacrificed before Goddess Kālī, before the goat being cut by his throat, the priest says that "Because you are sacrificing your life before Goddess Kālī, next life you are going to have human form of body for your this sacrifice." Otherwise you have to undergo the process. That is gradual evolutionary process.
But because you are forced somehow or other in the presence of mother material energy, she will give you the facility to promote immediately to the human form of life. And as human being, you will have every right to kill this man who is killing you. That is meaning of māṁsa. Mām means "me"; sa means "he." "He will also eat me." So I will have to take the form of a goat next life, and he will take the form of a human being, and he will get the chance of killing me. He can excuse, but he will get the chance. This is the bandhana. Karma-bandhana. So after hearing all these mantras, if one takes the risk of eating meat, let him do that. But who is that sane man who will take this risk?
This is the meaning of sacrifice. Not that it is a slaughterhouse substitute. No. They will understand that what kind of risk they are going to take by killing the animal under the name of sacrifice. Another thing is that to sacrifice the goat before the demigod Kālī means it is restricted. Because the prescription is that one can sacrifice a goat before Goddess Kālī on the dark moon night, amāvasyā. That is once in a month. So even the śāstra gives him the facility, the facility is restricted. As much as marriage. What is the difference between married sex and without wife? Restricted. You restrict to one woman. You don't spoil many women and get syphilis disease. You see? This is restricted: restricted to one man, restricted to one woman, restricted once in a month.