There is verse in the Second Canto of Śrīmad-Bhāgavatam. Dehāpatya. What is that verse? Dehāpatya-kalatrādi (SB 2.1.4). Deha, first affection is with our body. "I am this Mr. Such and such. This is I am, this body." I have got attraction for this body. Then the offsprings, the by-products of this body. Apatya. Apatya means children. And how this by-product is made? Kalatra, through wife. Strī. Strī means which expands. Vistara, expands. I am alone. I accept wife, strī, and with her cooperation I expand. So one who helps me to expand, that is called strī. Every Sanskrit word has got meaning. Why woman is called strī? Because she helps, expanding myself. How expanding? Dehāpatya-kalatrādiṣu (SB 2.1.4). I get my children. First of all I was affectionate to my body. Then, as soon as I get a wife, I become affectionate to her. Then, as soon as I get children, I become affectionate to children. In this way I expand my affection for this material world. This material world, attachment. It is not required. It is a foreign thing. This material body is foreign. I am spiritual. I am spiritual, ahaṁ brahmāsmi. But because I wanted to lord it over the material nature, Kṛṣṇa has given me this body.