I also looked at it like this once:
What if I were to meet a person face to face who told me, that they know my future and my purpose in life, but they aren't allowed to tell me what it is. But if I do what they step by step they will bring me there.
I wouldn't trust a person like that. I would say "Either tell me what it is up front or leave me alone."
Because really that is a very unequal power relationship. Chances are no one in everyday physical life woud ever offer a proposition like that unless they were a cult leader or somthing.