That knowledge is there in the Bhagavad-gītā in the beginning, the first lesson: dehino 'smin yathā dehe kaumāraṁ yauvanam (BG 2.13). "Within the body there is the soul. That soul is eternal." Na hanyate hanyamāne śarīre (BG 2.20). Na jāyate na mriya... This is the first lesson, that "I am Brahman. I am spirit soul. I am eternal. I do not die even after the annihilation..." This is the first lesson. It doesn't require much time, that we have to devote our whole life to understand that "I am Brahman." It can be understood even by a child. It is not very difficult. But how to engage myself as Brahman, that requires education. That is,
- śravaṇaṁ kīrtanaṁ viṣṇoḥ
- smaraṇaṁ pāda-sevanam
- arcanaṁ vandanaṁ dāsyaṁ
- sakhyam ātma-nivedanam
- (SB 7.5.23)
So these things begins after self-realization. Otherwise, why one should be interested about Viṣṇu, śravaṇaṁ kīrtanaṁ viṣṇoḥ? One is interested, "What is the report of the share market?" That's all. He should hear that? No. The śāstra says, "No. You should hear about Viṣṇu only." That is our Kṛṣṇa consciousness movement, that "You hear about Viṣṇu, Kṛṣṇa, and not anybody else. There are so many politicians, big, big other materialistic person. We can hear about him. Just like people are reading the biography of big, big politicians and spoiling their time. We are not interested. We are not interested. We are interested only to hear about Viṣṇu. That is Kṛṣṇa consciousness. We are inter... So many biographies are there. People are interested. But our literature... We have published so many, about fifty books—only on Kṛṣṇa. That's all, nothing else. Śravaṇaṁ kīrtanaṁ viṣṇoḥ. These three processes is going on. The publication means śravaṇaṁ kīrtanaṁ viṣṇoḥ (SB 7.5.23). Or smaraṇaṁ pāda-sevanam. They are of Viṣṇu. That is Kṛṣṇa consciousness movement. Stick to this principle. Don't try to hear anything else.