- satāṁ prasaṅgān mama vīrya-saṁvido
- bhavanti hṛt-karṇa-rasāyanāḥ kathāḥ
- taj-joṣaṇād āśv apavarga-vartmani
- śraddhā ratir bhaktir prasīdati
- (SB 3.25.25)
Satāṁ prasaṅgāt. Sat-saṅga. Sat-saṅga. Sat means devotees, and asat means nondevotees. Even in moral instruction of Cāṇakya Paṇḍita, he advises: tyaja durjana-saṁsargaṁ bhaja sādhu-samāgamam. Cāṇakya Paṇḍita adv . . . although he was a politician, a great politician, still, a learned brāhmin and knowing all moral instruction, he gives this advice: tyaja durjana-saṁsargam.
This is the crucial point of advancement in human life. Tyaja durjana-saṁsargam: "Try to avoid." Not try; must. You must avoid the association of the materialistic persons. Materialistic person means those who are after money and woman. That's all. They are materialistic. Those persons, simply hankering after money and woman, they are materialistic.
Śrī Caitanya Mahāprabhu has advised to associate with this class of men, hankering after money and women, it is better . . . death is better, preferred, than to associate. When He was requested to see King Pratāparudra—because he was king, he's supposed to be always in association with money and women—He refused to see him: "No, I cannot see the King." When He refused to see, He quoted one verse: bhava-sāgarasya, niṣkiñcanasya bhava-sāgarasya. Niṣkiñcanasya jigamiṣor bhava-sāgarasya (CC Madhya 11.8).
People do not know what is bhava-sāgara. They do not know even. But in Vedic literature, this is the first instruction, how to get out of this bhava-sindhu, bhava-sāgara, material ocean. The whole universe is also a ocean. And all these planets, they are called dvīpa. Just like this planet is called Jambudvīpa, Bhārata-varṣa. Actually it is like dvīpa. Nowadays, those who are flying in the sky, they're going from one island to another island, one planet to another planet. So when there is called dvīpa, there must be relative term, the ocean, or the sea. So whole this universe, this planets, they are called dvīpa. Therefore they are floating in the ocean of air. Just like you have got experience. You have got experience of this also, ocean of water. And above water, there is air, ocean of air. Then there is sky.