Krishna is the father of all living entities. He is not happy that all these souls in the material world are rotting like hogs. Therefore He sends His representatives. In the case of Lord Jesus Christ, Krishna sent His son. Lord Jesus claimed to be the son of God. Everyone is a son of God, but this son was an especially favorite son, and he was sent to a particular place to reclaim the conditioned souls back home, back to Godhead.
But if the conditioned souls insist on staying here, what can Krishna or His servant do? They allow us to go on with our materialistic activities, because the first condition for getting out of the material prison house is that we must desire to get out. When we finally become disgusted with our predicament, we pray, “My dear Lord, I have served lust, anger, and greed for so long, but they are still unsatisfied, and now I have become disgusted with serving them. Now, my dear Lord Krishna, my intelligence is awakened, and I have come to You. Please engage me in Your service.”
A Second Chance. The Story of a Near-Death Experience.
SC 10: The Next Life: Its Up to Us.