I know his work well, I must rephrase my question he answers why it works well, but I don't think he really addresses why the "folding" pattern (as I called it

I know his work well, I must rephrase my question he answers why it works well, but I don't think he really addresses why the "folding" pattern (as I called it) arises I'm also looking at Erv Wilson's work (in the book by Nakamura) and he gets closer to addressing what I'm focusing on.