Vyāsadeva, after writing all the Vedic literature, he was not satisfied. He wrote the four Vedas, then the Purāṇas—Purāṇas means supplementary to the Vedas—and then Vedānta-sūtra, the last word of the Vedic knowledge, Vedānta-sūtra. But he was not satisfied. So Nārada Muni, his spiritual master, he inquired that "Why you are feeling dissatisfaction after writing so many books, giving knowledge to the human society?" He said, "Sir, yes, I know that I have written... But I am not getting satisfaction. I do not know what is the reason." Then Nārada Muni said, "The dissatisfaction is due to your not describing the activities of the Supreme Lord. Therefore you are not satisfied. You have simply discussed the external elements, but the internal elements, you have not discussed. Therefore you are dissatisfied. Now you do it." So under the instruction of Vyāsadeva..., er, Nārada Muni, his spiritual master, Vyāsadeva, his last mature contribution is Śrīmad-Bhāgavatam. Śrīmad-bhāgavatam amalaṁ purāṇaṁ yad vaiṣṇavānāṁ priyam (SB 12.13.18). Therefore the Vaiṣṇava, they regard the Śrīmad-Bhāgavatam as amalaṁ purāṇam. Amalaṁ purāṇam means... Amalam means without any contamination. These all other purāṇas, they are dealing with karma, jñāna, yoga. Therefore they are samalam, with material contamination. And Śrīmad-Bhāgavatam, simply dealing with bhakti; therefore it is amalam. Bhakti means directly in connection with the Supreme Lord, bhakta and Bhagavān, and the transaction is bhakti. There is Bhagavān, and there is bhakta, just like master and the servant. And the relationship between the master and servant, the transaction, is service.
So service we have to... That is our natural, natural instinct. We are giving service. But being contaminated, that consciousness, citta, being contaminated by these material elements, we are trying to give service in different way. Somebody is interested in giving service to the family, to the community, to the society, to the nation, to the humanity, to the more and more, but all these services, they are contaminated. But when you begin your service in Kṛṣṇa consciousness, that is perfect service. That is perfect life. So the Kṛṣṇa consciousness movement is trying to raise the human society to the perfect platform of rendering service.
Thank you very much.