SB 1.5 - Setting an example by the expert devotees
The Supreme Lord is unlimited, and only one freed from desires of material happiness can understand Him. Therefore those who are not so situated due to material attachment should be shown the ways of transcendental realization, thru descriptions of the transcendental activities of the Lord. In the Bhagavad gītā it is said that out of many hundreds and thousands of men, only one person is interested in self realization. And out of those persons, only a few can understand the theological science dealing with God as a person. Vyāsa is advised to describe this science of God directly by relating His activities. Vyāsa is unattached to material enjoyment, and so is the right person to describe it, and Śuka is the right person to receive it.
The wise person, giving up material happiness, can realize the happiness of the Lord and then take to bhakti, setting an example for others. It was said previously that people without discrimination were certain that Vyāsa recommended the material path. But people with discrimination can understand the happiness of the Lord, who is beyond time and measurement. Understanding that happiness to be unlimited, he would perform bhakti to attain that happiness. By seeing such persons, others would also take up the process of bhakti. Bhāgavatam is the literary incarnation of Kṛṣṇa. The layman, who hears the narration of the activities of the Lord as depicted in Bhāgavatam, is able to associate with the Lord directly and thus become purified from material diseases. The expert devotees also can discover novel ways and means to convert the non devotees in terms of particular time and circumstances.