Q Is saying that the U.S. will return to sound money (no cabal-controlled central bank (no Federal Reserve))
The Yellow Brick Road is a central part of the book The Wizard of Oz, which was written in 1900, before the Federal Reserve was created. The Yellow Brick Road refers to the gold standard which refers to sound money. Currency that is tied to gold retains value. Currency that is not tied to gold is printed in massive quantities and loses value.
The Wizard of Oz was about U.S. currency, gold, and silver in late 1800s and early 1900s.
Explanation of the characters of the book:
https://theyellowbrickroadfreeblog.wordpress.com/the-meaning-of-the-yellow-brick-road/