Before Yoda there was author Carlos Castaneda and his Yaqui sage Don Juan Matus.
In the books, the old shaman is constantly trying to teach the younger man to expand his mind and break away from the social conditioning of his past in order to gain true insight into the world.
But the student is stubborn, and keeps finding excuses to hinder his own progress. He likens himself, and his resulting sorrow, to that of a leaf being blown by the wind.
And so he is chastised.
"The hardest thing in the world is to assume the mood of a warrior," (Don Juan) said. "It is of no use to be sad and complain and feel justified in doing so, believing that someone is always doing something to us. Nobody is doing anything to anybody, much less a warrior.
"You are here, with me, because you want to be here. You should have assumed full responsibility by now, so the idea that you are at the mercy of the wind should be inadmissible."
Castaneda gained a big New Age following with these stories that continues today. I think part of the reason for the popularity is the author's subtle parallels of wisdom between the indigenous cultures of both east and west (it provides an almost zen-like tradition based in the Arizona desert). For me, the whole student and teacher theme, explored in many a legend and parable, is more than just a literal description of knowledge being passed between the old and the young. To me, it reflects the concept of the Higher Self communicating with the intellectual self.