Dorothy and the Wizard in Oz appeared to be in the order of "Transformation from Without" which is the White path of Structure and Identity.
Transformation, Purple Orange Green Red Blue Yellow
That way produces a Paragnostic of the Red. One who knows what is true without knowing why it is true.

The Road to Oz appears to in the order of "Transformation from Within" which is the Black path of Causality and Love. That way changes a Paragnostic of the Red into a Paragnostic of the Blue. One who understands why something is true without yet being able to leverage truth in order to modify situations.

The Black path combines the paths of Transformation and Creation. 

The path of Transformation is along the Tetractys from 1 to 10. 
Clear Purple Orange Green Red Blue Yellow White Black Colorless
The path of Creation is the specific absence of the path of Transformation and goes from 1 to 7 in the order of the days of the week and then goes from 8 to 10
Clear Purple Red Orange Blue Green Yellow White Black Colorless
The combined path starts at the center at 1 which is common to both and then alternates between the two paths till it gets to 8 which is common to both and then goes to 9 and 10

Clear t-Purple c-Purple t-Orange c-Red t-Green c-Orange t-Red c-Blue t-Blue c-Green t-Yellow c-Yellow White Black Colorless

The White path has external constraints and only one way to go.
The Black path has only one path that succeeds but it need not be followed. It defines and is causative of itself without external constraints. Failure to follow it means that it must be refound.