You become gṛhastha, but you produce your food from the land, gṛha-kṣetra. And when you produce food, then beget children, gṛha-kṣetra-suta-āpta-vitta. In India in village, there is, still the system is amongst the poor men, the cultivators, that if the cultivator cannot provide to keep a cow, he will not marry. Jaru and goru. Jaru means wife, and goru means cow. So one should keep a wife if he is able to keep a cow also. Jaru and goru. Because if you keep a wife, immediately there will be children. But if you cannot give them cows' milk, the children will be rickety, not very healthy. They must drink sufficient milk. So cow is therefore considered mother. Because one mother has given birth to the child, the another mother is supplying milk. So everyone should be obliged to mother cow, because she is supplying milk.
So according to our śāstra there are seven mothers. Ādau mātā, real mother, from whose body I have taken my birth. Ādau mātā, she is mother. Guru-patnī, the wife of teacher, she is also mother. Ādau mātā guru-patnī, brāhmaṇī. The wife of a brāhmaṇa, she is also mother. Ādau mātā guru-patnī brāhmaṇī rāja-patnikā: the queen is mother. So how many? Ādau mātā guru-patnī brāhmaṇī rāja-patnikā, then dhenu. Dhenu means cow. She is also mother. And dhātrī. Dhātrī means nurse. Dhenu dhātrī tathā pṛthvī, also the earth. Earth is also mother. The people are taking care of mother land, where he is born. That is good. But by the by, they should take care of mother cows also. But they are not taking care of mother. Therefore they are sinful. They must suffer.