The Supreme Personality of Godhead has instructed in Bhagavad-gita (18.44), krsi-go-raksya-vanijyam vaisya-karma-svabhavajam: Farming, cow protection and trade are the qualities of work for the vaisyas. Nanda Maharaja belonged to the vaisya community, the agriculturalist community. How to protect the cows and how rich this community was are explained in these verses. We can hardly imagine that cows, bulls and calves could be cared for so nicely and decorated so well with cloths and valuable golden ornaments. How happy they were. As described elsewhere in the Bhagavatam, during Maharaja Yudhisthiras time the cows were so happy that they used to muddy the pasturing ground with milk. This is Indian civilization. Yet in the same place, India, Bharata-varsa, how much people are suffering by giving up the Vedic way of life and not understanding the teachings of Bhagavad-gita.