In the śruti, in the Vedas, there is mention of paśu sacrifice, animal sacrifice, there is. So they began to argue with Lord Buddha that "You are stopping yajña-vidhi, stopping animal-killing in the yajña. This is mentioned in the Vedas." But Lord Buddha knew, "These rascals simply talking of Vedas, he does not know what is Vedas. But what is the use of arguing?" Therefore he has to say, "I don't care for your Vedas. Stop animal-killing." So nindasi yajña-vidheḥ. Yajña-vidhi, he wanted to stop: no more animal sacrifice in the yajña. Therefore he is denying the authority of Vedas. Nindasi yajña-vidher ahaha śruti-jātam. We cannot violate which is mentioned in the . . . Therefore he was taken . . . But he's avatāra. It was needed at that time.
As it is said here, bhuvo bhāra-jihīrṣayā. When these rascals and fools increase, it becomes a burden to the earth. Just like a practical example: a child or a man, you weigh him. When he's alive you will find one weight, and when he's dead you will find another weight. That is practical. It will be heavier. Why heavier? Because there is no more spirit soul. So the more people will be materialistic, the world will be burdened. Therefore there must be war, pestilence, famine, to clear these rascals, clear out. You'll find these things. In Europe, every ten years, twenty years, there is a fight, war. It is the history. From the Greece history, Roman history and Seven Years War, Hundred Years War—wars. There must be war, because they are sinful. The same sinful, killing animals continually. So there is war, reaction. So what is that war? To lessen the burden. To lessen the burden. It becomes very heavy, unbearable by the earth. And to reduce the weight there is natural . . . And when there is still more power required, then Kṛṣṇa comes: "Arrange for a war in the battlefield of Kurukṣetra and bring all the rascals and finish within eighteen days." Within eighteen days, sixty-four crores men died. This is . . . But why? It is Kṛṣṇa's arrangement.