Yajña means anything sacrificed for the satisfaction of Viṣṇu. That is called yajña. Yajña means to satisfy the Supreme Lord Viṣṇu. That is yajña. Now, in this age the Supreme Lord is satisfied simply by saṅkīrtana, or congregational chanting: Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare. This is mentioned in the śāstra.
- harer nāma harer nāma harer nāmaiva kevalam
- kalau nāsty eva nāsty eva nāsty eva gatir anyathā
- (CC Adi 17.21)
In this age of disagreement there is no possibility of executing different process of self-realization. No. They say that there are as many paths as one can manufacture. It may be true. But in this age, kalau nāsty eva nāsty eva nāsty eva gatir anyathā: "There is no other alternative, no other alternative, no other alternative in this age." Therefore an intelligent man will take up this Kṛṣṇa consciousness movement. That is the test of one's intelligence. And it is very easy. And by simply chanting Hare Kṛṣṇa you gradually develop your Kṛṣṇa consciousness to the highest platform. So one who has accepted the simply method recommended for this age, he is called the intelligent. That is required. That much intelligence we must have.