The Śaṅkarācārya, he was passing on the road and he's singing. He was lamenting, what is that? Balas tavad krida sakta: "Oh, all these boys are playing." Generally, when you pass a road you see the boys are playing, very much busy, and they're very jolly in playing. Bālas tāvad krīḍāsaktas taruṇas tāvad taruṇī raktaḥ: "And young boys, they're after young girls." You see?
Taruṇas tāvad taruṇī-rakto vṛddhas tāvad anta-magnaḥ. "And the old man, they are very much morose, 'What is to be done next?' " Parame brahmaṇi ko 'pi na lagnaḥ. "Oh, everyone is busy. Nobody's interested in Kṛṣṇa consciousness, spiritual life. Everyone is busy. How they are spoiling their life!" That is the version of Śaṅkarācārya.
He's lamenting that the boys, the youths, the old man, they are very happy in their materialistic way of life, but a spiritualistic man like Śaṅkarācārya or Lord Jesus Christ, they are unhappy, "Oh, what foolish things they are doing." That is the, I mean to say, thankless task of persons who are spiritually enlightened. They can see it plain that how they are spoiling their valuable life, simply for sense gratification.
So Prahlāda Mahārāja is practically instructed the same thing, that kaumāra ācaret prājño dharmān bhāgavatān (SB 7.6.1). Dharmān bhāgavatān iha. Bhāgavatān dharmaḥ. Dharma means your occupational duty. The "religion," word "religion," translation of the Sanskrit word dharma, is not perfect. Is not perfect. Religion is a kind of faith. That we can change. But dharma, dharma means your occupational duty. You cannot change. You have to execute it.
What is our dharma? What is our compulsory duty? I have several times analyzed this fact. Our compulsory duty is to serve. Compulsory duty. Every one of us is serving, and all the boys and girls present here can know it. And nobody can deny that he or she is not serving. Everyone is serving. That is our compulsory duty.
I may change my faith. I am Christian or I am Hindu, I may change myself to become a Muhammadan or Christian or Hindu. But my real occupational duty to render service to others, that cannot be changed. That is the real enunciation of religion. And therefore in the Vedic system it is called sanātana-dharma. Sanātana-dharma means that eternal occupational duty which you cannot cease.
Now, Prahlāda Mahārāja is advising that dharmān bhāgavatān. Bhāgavatān means . . . Bhāgavata means pertaining to Bhagavān. And Bhagavān means to the Supreme Personality of Godhead. So bhāgavata is the adjective form of the noun word Bhagavān. Bhaga, real form of the word is bhagavat. Bhagavat. Vat means possessing, and bhaga means opulences.
One who possess all the opulences, He's called bhagavat. And from bhagavat this word has come, bhāgavata. So bhāgavata means pertaining to God and His devotees. That is called bhāgavata. Just like this book is called Bhāgavata because it deals only with the subject matter of the Supreme Personality of Godhead, nothing more. Bās. Therefore it is called Bhāgavata. And you'll find description in this book, the dealings between Bhagavān, the Supreme Personality of Godhead, and His devotees.
So there are two kinds of bhāgavatam: the devotee bhāgavatam and the book Bhāgavatam. And Prahlāda Mahārāja advises that from the very childhood, if one is very intelligent then his duty is kaumāra ācaret prājño dharmān bhāgavatān iha (SB 7.6.1): one should engage himself in the execution of the duties, occupational duties, in relationship with devotees and the Supreme Personality of Godhead.