So the modern scientists, they do not know what is real problem. They are thinking advancement. Another point is here, that trīl lokān pradahan mahat and dahyamānāḥ prajāḥ sarvāḥ. Prajā. Prajā means living entities. Prajāyate: one who takes his birth. So in the three worlds... Three worlds means these upper, middle, and lower planetary systems in this universe. Trīl loka. Trīl lokān. So everywhere there is prajā, there is living entities. Otherwise, how it is said trīl lokān? It is a foolish theory that there is no life in other planets. A rascal theory. It has no meaning. Trīl lokān. We have got many evidences. I do not know why these rascal scientists say that there is no life in other planet. Why? The other planet is also made of the pañca-bhūta, pṛthvī-ap-tejas-vāyu-ākāśa. They are not different. Maybe something is very prominent. Just like in the sun globe, the fire is prominent. Fire is also one of the five elements: pṛthvī-ap-tejas. That does not mean there is no life. There must be. Otherwise, how Kṛṣṇa talked with the sun-god, imaṁ vivasvate yogaṁ proktavān aham avyayam (BG 4.1)? And the living entity, nainaṁ dahati pāvakaḥ. The living entity is not burned by the fire. It is not dried up, it is not moistened. This is stated. So why there will be no life in the sun globe? There must be. Because nainaṁ dahati pāvakaḥ, fire cannot burn the living being. So there are germs in the fire also, agni-pa(?).
So we are being misled by the so-called scientists and the math... That is not perfect knowledge. The perfect knowledge is in the Vedas. Therefore it is advised, tad-vijñānārthaṁ sa gurum evābhigacchet śrotriyaṁ brahma-niṣṭham (MU 1.2.12). You should go to a guru who has complete knowledge from the śruti. Śruti means Vedas. Ācāryavān puruṣo veda. Veda means you have to approach ācārya. He knows everything. Unless he is not followers of the Vedas, śruti, he's a rascal. What is the use of going there? What is the... What you'll get by approaching a so-called rascal guru, one who does not know śruti? Therefore Śrīla Rūpa Gosvāmī has forbidden. And Sanātana Gosvāmī has forbidden. Avaiṣṇava-mukhodgīrṇaṁ pūtaṁ hari-kathāmṛtam, śravaṇaṁ naiva kartavyam. Because śravaṇam, śruti... To go to guru means to hear from him, to inquire from him.