A yellow brick wall asks you to change direction. Yellow brick walls can be subtle or they can be unmistakable. The hard part is acknowledging the yellow brick wall is there, especially when you’ve set your path and you want to continue in the same direction. It behooves you to acclimate your senses to be able to see a yellow brick wall, when it appears. Doing so will allow you to change to a more productive course, to avoid hitting your head against it, to no avail and to see reality as it truly is.