This is very important. Mṛtyu-saṁsāra. What is this saṁsāra? Saṁsāra means that you take your birth once and live for some times, then you die, then you accept another body, then again live for some time, then you die, then you accept another body, and that body, you do not know what kind of body you are going to accept. Tathā dehāntara-prāptiḥ (BG 2.13). Kṛṣṇa says dehāntara-prāptiḥ: another . . . transfer to another body. But what kind of body, that is not mentioned there. That will depend on your work. You may get the body of a demigod, you may get the body of a dog, you may get the body of a tree, you may get the body of a snake—according to your karma.
So here it is said, aśraddadhānāḥ puruṣā (BG 9.3). Those who are not interested in this rāja-vidyā, devotional service, aśraddhadhānāḥ: no faith. Aśraddhadhānāḥ puruṣā dharmasya . . . this is dharma, real dharma. Devotional service is real dharma, because dharma means dharmaṁ tu sākṣād bhagavat-praṇītam (SB 6.3.19). Bhagavān says, sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66). Bhagavān says, man-manā bhava mad-bhakto mad-yājī māṁ namaskuru (BG 18.65). This is dharma. This is dharma. Otherwise, you can manufacture so many other dharmas—that is not dharma; that is your concocted dharma. But real dharma this is: sarva-dharmān parityajya mām ekaṁ śaraṇam, man-manā bhava mad-bhakto mad-yājī . . . this is most confidential dharma.
So anyone who is not interested in this dharma, but he manufactures his own dharma, then what happens to him? Aśraddadhānāḥ puruṣā dharmasyāsya parantapa aprāpya mām (BG 9.3): "He does not get Me." Does not get. This is the mission of human life—to go back to home, back to Godhead. That is the . . . tyaktvā dehaṁ punar janma naiti mām eti kaunteya (BG 4.9). The real mission of life: how to go back to Kṛṣṇa, how to go back to Vaikuṇṭhaloka, the spiritual world. That is real mission. But that we do not know; therefore it is most confidential.
People do not know it that there is another world, the spiritual world, there is Vaikuṇṭhaloka. This, this material world is one-fourth creation. Atha vā bahunaitena kiṁ jñātena tavārjuna ekāṁśena viṣṭabhya aham kṛṣṇena (BG 10.42). This material world is maintained as one fourth of the creation. The three-fourths of the creation is the spiritual world. Paras tasmāt tu bhāva anyaḥ (BG 8.20). There is another nature. So we do not know that. There is no education. We are simply interested with this one planet. There are so many material planet. But above that there is another, spiritual world, and there are innumerable spiritual planets also. They are called Vaikuṇṭhaloka, and the topmost Vaikuṇṭhaloka is Goloka Vṛndāvana, Kṛṣṇaloka. So we have no information.
So if we execute this devotional service, rāja-vidyā, then we can go back to home, be transferred to the spiritual world. But they do not know. Aśraddadhānaḥ. Then, aprāpya mām: they do not know how to go back to home, back to Godhead. Aprāpya. Then what happens? Aprāpya māṁ nivartante mṛtyu-saṁsāra-vartmani (BG 9.3): he remains here in this material world and goes on transforming, transmigrating from one body to another, one body to another. And we should know, we should be very responsible that what kind of body we are getting next. If you don't care . . .
Big, big professors, big, big learned scholars, they say that after finishing the body . . . our men in Delhi, New Delhi, they are making some Life Members amongst the parliamentary M.P.s. So one M.P. said that, "We don't believe in this. The last perfection is to become zero." To become zero. Because they cannot think, those who are materialist, they cannot think that there is another, spiritual world. They, they cannot think. Therefore this zero theory, śūnyavāda, was propounded by Lord Buddha. Lord Buddha propounded śūnyavāda, because the people are so rascal, they could not understand. There was no necessity. There was no necessity. He simply said nirvāṇa: "Stop this nonsense material life." But after material life, what is there, that he did not reveal, because these fools and rascal will not understand. Therefore he did not say. Śūnyavāda: make it śūnya.