When the pot of milk is boiling over, despite the fact that Krishna is clinging on to Yasoda with all His might, she is able to put Him down with one hand and order Him, "Sit down quietly." Although Krishna is crying, because her only desire is Krishna's welfare, her action is pure bhakti. She is thinking that the milk should not boil over because it makes so many nice sweets and other preparations for Krishna's growing up nicely.
On the other hand, the activity of Carana and Mustika, the two wrestlers in the arena of Kamsa, although giving Krishna great pleasure in the mood of heroism is not bhakti. This is because their intention was to kill Him. Bhakti is understood by one's intention, and one who has that intention is able to control Krishna.
14 Jan 2001 Auckland