" why I am here for ? "

I just thought of a joke. Since its a joke, take it easy...

A man meet GOD in his sleep

man, " God, can you tell me what am I here for? "
God, " You need to figure it yourself. "
man, " But if you tell me, life would be much more easier. "
God, " Okay, you are suppose to be fisherman, and catch fish for everyone else."
man, " But I dont like fishing, i dont even know how to fish. "
God, " Okay, what about becoming a teacher, so you can help the world the understand more of themself . "
man, " Doesnt sound much fun to me. can I be destine to become something greater?"
God, " you can become business man, making millions and billions of dollars"
man, " Wow, that's great. How should i start?"
God, " ......... "