Therefore Kṛṣṇa says, tat kṣetraṁ yac ca yādṛk. Yādṛk means "as it is." We have got different kṣetram. I have got this body; you have got another body. No two bodies you'll find equal in every respect. You'll find two bodies... We have got two hands, two legs, two eyes. These are all right, but your eyes are different from my eyes, your arms are different from my arms. This is human society. Then there are other bodies, animal society, bird society, beast society, aquatic society, insect society. There are so many, eight million four hundred thousand species forms of life. They're all living entities. But why they have got different types of bodies? That is explained here. Tat kṣetraṁ yac ca yādṛk ca.
Why we have got different bodies? And yādṛk ca, how it is working? Yādṛk ca. Tat kṣetraṁ yac ca yādṛk ca yad vikārī. How it has transformed in different forms? Yad vikārī yataś ca yat (BG 13.4), and wherefrom it has come to be so? Sa ca yo yat prabhāvaḥ. How, under certain influence, we get this body? There are three kinds of influences, you must always know, material influences.