Causality works differently in Mundania than in Faerie. In Mundania you may picture a sort of egg with a Black inside and a White shell. A potential event starts out with a lot of different black potentials and very few white probabilities. Over a period of time the probabilities get more and more distinct and particular so the white probabilites grow, while the black possibilities become less and less until there is only one and the event actually occurs. Think of a quantum waveform collapsing and the cat is alive aliv-o.
In Faerie the egg starts out with just a little Black inside and a humungous White shell. Over a period of time the black potentials become more and more diverse and the white probabilities become less and less distinct until there are no probabilities left, there is only actuality, and the narrative is complete. The chapter is finished.
The following three have their possibility of Resolution brought into probability and potentiality by Dorothy who is 10 Recursive to Oz. She is recursive to them and brings them to completion. She came from potential recursion in Kansas to actual recursion in Oz. Her presence in Oz and desire to Return brings Oz back upon itself recursively. In effect her magic of love causes Oz to become itself.
First the Scarecrow. Formed like every other scarecrow in Oz but randomly unique, just like every other event in Faerie. Bit by bit he is painted and stuffed and his potential faculties become more and more, and eventually his is a complete person. Unlike any other scarecrow before or since. In effect he has a Black body of potentialities and a White mind of logic and reason. And he is concerned about his ability to think and reason. He is an exemplar of 8 White.
On the other hand Nick starts out as a normal (!) woodman and by a process of Black causality being applied to his White actuality his white body becomes less and less actual and becomes a limited white shell of a man. He ends up with a White body of structure and a Black mind of love and tenderness. And he is concerned about his ability to love appropriately within the bounds of proper balance. He is an exemplar of 9 Black.
And third there is the Lion. The courageous King of Beasts. Who trembles in fear and attacks like a berserker. His will to act is not overcome by his fear of consequences. He has true courage but fails to recognize that he has true courage. He is an exemplar of 5 Red.This is the beginning of the path of the secondary rainbow that is the reverse of the primary. 10 8 9 5 In northern tradition the secondary rainbow is the bridge to Elfheim, the land of Faerie.