Sometimes He wants to fight. Because the fighting spirit is also there in Kṛṣṇa. Otherwise, where we get? Because we are part and parcel of Kṛṣṇa, all the qualities of Kṛṣṇa in minute quantity, they are within us. We are sample of Kṛṣṇa, but the . . . wherefrom we get this fighting spirit? The fighting spirit is there in Kṛṣṇa. Therefore, just like sometimes a big man or kings, they engage some wrestler to fight. They, they pay the wrestler to fight with the king. But he's not enemy. He is giving pleasure to the king by fighting, mock fighting.
Similarly, when Kṛṣṇa wants to fight, who will fight with Him? Some of His devotee, great devotee will fight with Him. Not ordinary. Just like a king, if he wants to practice mock fighting, some very exalted fighter, wrestler will be engaged. Similarly . . . that is also service. Because Kṛṣṇa wants to fight, therefore some of His devotees come down to become His enemy. Just like Jaya-Vijaya, this Hiraṇyakaśipu and Hiraṇyākṣa.
Do you think they are ordinary living entity? If . . . that . . . nṛsiṁha-deva, God Himself has come to kill him. Do you think they're ordinary? No, they're not ordinary. They're devotees. But Kṛṣṇa wanted to fight. In the Vaikuṇṭha world there is no possibility of fighting, because everywhere there, everyone there is engaged in Kṛṣṇa's service. With whom He'll fight? (laughter)
Therefore He sends some devotee in the garb of enemy, and Kṛṣṇa comes here to fight with Him—at the same time, to teach us that becoming enemy, enemy of Kṛṣṇa is not very profitable. Better become friend. That will be profitable. Therefore it is said that na veda kaścid bhagavaṁś cikīrṣitam: "Nobody knows what is the purpose of Your appearance and disappearance." Tava īhamānasya nṛṇāṁ viḍambanam: "You are in this world just like ordinary human being. This is bewildering." Therefore ordinary man cannot believe. "How God can become a ordinary person like . . .?" Kṛṣṇa is playing, although He was not playing ordinary person; He was playing as God. Wherever there was necessity.