Young woman: I have a question from Brahma-mūrti. Why did people in the past ages sacrifice animals, and how did Kṛṣṇa put a stop to this?
Prabhupāda: Oh, yes. That I've explained just a few minutes before. The animals were put into the sacrificial fire. By Vedic mantra, he was given new life. But at the present moment such expert priests and brāhmaṇas are not available. Therefore it is stopped. Animal sacrifice is stopped. Because it is Kali-yuga. Nobody is reading, cultivating Vedic mantras. So in this age, this mantra is called mahā-mantra, chant Hare Kṛṣṇa. That's all. All Vedic mantras are now gone to hell. You see? Nobody can properly chant Vedic mantras and take the benefit out of it. But this mantra, any way you chant, neglectfully or properly, chant Hare Kṛṣṇa and the result is there. Therefore Caitanya Mahāprabhu said, nāsty eva nāsty eva nāsty eva gatir anyathā. There is no other alternative, no other alternative, no other alternative, kalau, in this age. So the Vedic mantra is now gone. This is also Vedic mantra, but this is Vedic mahā-mantra, the greatest of all mantras. Yes. So sacrifice everything and chant this mantra and go to Kṛṣṇa, back to Godhead. That's all.