Just like a man diseased, he can be changed into a healthy person provided it follows the medical rules and regulation, takes medicine, diet and . . . that is possible. So if one does not follow the regulation, rules and regulation, he remains there, diseased. It is not that, that "We have become now free. We can talk nonsensically and we can behave like nonsense. Still, we are advanced." That is not possible. Sāttvikī rājasī caiva tāmasī ceti tāṁ śṛṇu. How? What are the symptoms to know that one is situated in the sattva-guṇa or one is situated in the rajo-guṇa or one is situated in tamo-guṇa? By the symptoms. The symptoms are also mentioned. The sattva-guṇa means brāhmaṇa. Sattva-guṇa in brāhmaṇa, their symptoms are mentioned in the Bhagavad-gītā. Everything is there, characteristic. You have to test it. Just like in the . . . (indistinct) . . . chemistry there is analytical study, whether it is pure or not. So every chemical has got characteristics—its color, its formation, its taste, so many things. Those who are chemists, they know how to test. So when the characteristic and the test of the chemical is found as "Yes, it is according to the standard," then it is accepted as a pure chemical, and it can be used for the purpose. And if it is adulterated . . . everything . . . we are cooking food. If the ghee is pure, then taste is different. If the ghee is impure, the taste is different. And if it is not ghee at all, oil, the taste is different. It is like that.
So people are being controlled by the three kinds of material nature, and if they do not follow the śāstric injunction, then he will concoct, he will create something according to his position, either in the tamo-guṇa or rajo-guṇa or sattva-guṇa. But those . . . means superficially doing something in the tamo-guṇa, he will not be successful. He will not be successful. Yaḥ śāstra-vidhim utsṛjya vartate kāma . . . (BG 16.23).
He is going on, conducting himself under the influence of the same modes of nature, material nature, which he has naturally adopted from his birth. There are . . . we have discussed all these in this verse, that sad-asad-janma, yoni-janmasu. Kāraṇaṁ guṇa-saṅgo 'sya (BG 13.22).
Everyone is getting a particular type of body. So one may say: "This body is very nice," "This body is not so nice," and "This body is very good." So why it is so? Because according to the association of the material nature. After all, the living entity falls down from the spiritual world. Just like Jaya-Vijaya. There is possibility, if you do not stick to the spiritual principle, even if you are in Vaikuṇṭha you will fall down, what to speak of this material world? Because in the Vaikuṇṭha, or in the spiritual world, no contaminated soul can stay there. He will fall down.