Behind Blue Eyes II
So, first I'll explain the reasoning behind the answer to the first question.
That's the reasoning. Sorry if I explained it poorly.
Now, this doesn't answer the second question, it still seems like the Guru gives no information. So what's to stop the above cycle from just occuring spontaneously. What does the Guru say to start it off?
So there you have it.
It's a little tough to get your head around, plus I'm pretty bad at explaining through text.
So if you've got any doubts or questions, please ask!