A person who can speak sweetly even with his enemy just to pacify him is called a pleasing talker. Krsna was such a pleasing talker that after defeating His enemy, Kaliya, in the water of Yamuna, He said: "My dear King of the snakes, although I have given you so much pain, please do not be dissatisfied with Me. It is My duty to protect these cows, which are worshiped even by the demigods. Only in order to save them from the danger of your presence have I been obliged to banish you from this place."
Kaliya was residing within the water of the Yamuna, and as a result the back portion of that river had become poisoned. Thus so many cows who had drunk the water had died. Therefore Krsna, even though He was only four or five years old, dipped Himself into the water, punished Kaliya very severely and then asked him to leave the place and go elsewhere.
Krsna said at that time that the cows are worshiped even by the demigods, and He practically demonstrated how to protect the cows. At least people who are in Krsna consciousness should follow in His footsteps and give all protection to the cows. Cows are worshiped not only by the demigods. Krsna Himself worshiped the cows on several occasions, especially on the days of Gopastami and Govardhana Puja.
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