Just like we have got pravṛtti inclination, loke vyavāya āmiṣa mada-sevā nityasya jantuḥ. Every living entity has got materially . . . there are two natures, spiritual and material. Materially, the inclination of sex enjoyment and eating meat—āmiṣa, āmiṣa means eating meat, flesh and fish, like that. That is called āmiṣa. Nonvegetarian means nirāmiṣa. So āmiṣa and mada and vyavāya. Vyavāya means sex. Loke vyavāya āmiṣa mada-sevā. Sex indulgence and eating meat, flesh, eggs, and drinking wine. Mada. Mada means liquor. So nityasya jantuḥ. Jantu. When one is in the material world he is called jantu. Jantu means animal. Although he's living entity, he's not called jīva soul, he's called jantu. Jantur dehopapattaye (SB 3.31.1). Jantu.
This material body is developing for the jantu, or animal. Anyone who is devoid of spiritual knowledge, he's called jantu, or animal. This is the śāstric injunction. Jantur dehopapattaye. Who gets this material body? Jantu, animal. So, so long we shall get on, or continually get or change this material body, we remain jantu, animal. Kleśada āsa dehaḥ. A jantu, animal, can tolerate, or he's forced to tolerate. Just like a bullock yoked in the cart and whipping. He has to tolerate. He cannot get out of it. Similarly, when they are taken to slaughterhouse to be killed, he has to tolerate it. There is no way . . . this is called jantu.
So those who have surrendered to the material nature, he has to suffer. He has to suffer. There is no way out. You have accepted this body. You must suffer. Kleśada āsa dehaḥ. This material body means suffering. So they do not know this. They are making so many arrangements and plans how to become happy, how to become peaceful, without any miserable condition, but the rascals, they do not know that so long you have got this material body—either a king's body or an ant's body—you must have to suffer. They do not know.
Therefore Kṛṣṇa says here that you take care of the soul. Tasmād evam. Tasmād evaṁ viditvā. Just try to understand the soul is important. You haven't got to lament for this body. This is already settled up: so much suffering, so much comforts, you'll get. Although the body, material body . . . because the material body is also created according to the three qualities. Kāraṇaṁ guṇa-saṅgo 'sya sad-asad-janma-yoniṣu (BG 13.22). When the inquiry is that why one has got the king's body and why he has got, one has got the pig's body—there are so many other bodies, 8,400,000 different types of bodies—so why the difference is there? That difference is explained in the Bhagavad-gītā: kāraṇam. Kāraṇam means cause. Why these varieties are . . . kāraṇaṁ guṇa-saṅga asya. Asya, jīvasya. He is associating with different kinds of qualities, and therefore he's getting a different type of body. Kāraṇaṁ guṇa-saṅgo 'sya.