Puṣṭa Kṛṣṇa: "This change of dress is due to his attachment to material existence. As long as he is captivated by this false manifestation, he has to continue transmigrating from one body to another. Due to his desire to lord it over material nature, he is put into such . . ."
Prabhupāda: If he wants to remain in this material world, creates a situation and continues his desire, then he has to take. And when he understands that "To live in this material condition is very troublesome. Why shall I live here?" then he becomes Kṛṣṇa conscious and he goes back to home, back to . . . and so long he desires, "No, why not? If I remain in this situation, I'll be happy," then he'll have to get a body. Nature will give him all chances: "Get this body." If one is very pleased to take raw flesh, "All right, why artificially? Take this body, tiger." That's all. Nature is . . . God is so kind. Before we were talking of God's mercifulness, so if you are thinking that it is very happy life to eat, without any discrimination, anything, so immediately God orders nature, "You give him body of a pig. He can eat anything, even up to stool. Give him this body." Yantrārūḍhāni māyayā (BG 18.61). This yantra, this vehicle, this body, is given to him: "Yes, now you can eat anything, up to stool." And he is very pleased. He wanted it. Mattaḥ smṛtir jñānam apohanaṁ ca (BG 15.15). He does not hesitate or feel any inconvenience. God is there, even within the heart of the pig: "My dear pig, you wanted a body like this. You have now got it. Now eat. Here is stool, you eat." And he enjoys.
So the living entity in this material world, he wanted to enjoy: "I am the monarch of all I survey." So God gives him all facility: "Whatever you want, you do." Karaṇaṁ guṇa-saṅgo 'sya sad-asad yoni-janmasu. He wanted it; therefore he gets different types of body. That is transmigration. But still He comes and teaches, "Rascal, why you are suffering in this way? Give up this plan; surrender to Me immediately." But he is making plan only. Just like in your country, there is everything opulent. The hippies are making plan, "We shall be happy in this way." What can be done? Everyone has got little independence. Let him do. So, so long we shall make plan to enjoy this material world, God will give us all facility, "All right, enjoy." Not enjoy—suffer. But because He is compassionate, kind, merciful, that is His . . . still He comes and begs, "You rascal, why you are making plan? Give up this. Sarva-dharmān parityajya mām ekam . . . (BG 18.66). Then you'll be happy." So if anyone is intelligent, he takes God's direct instruction and he becomes happy. Otherwise, go on making plan. He'll give you facility. That is God's kindness. (sounds of birds chirping nearby) They are enjoying. The birds of the same feather flock together. They keep together, they fly together. They enjoy. They think it is enjoyment.