This menu is a sub-menu that consists of several sub-menu’s that contain articles. It is nothing by itself, just a little menu for the mind to categorize and structure. The menu’s emerge like a fractal tree. When you zoom in the menu’s, the sub-menu appear, when you zoom into these sub-menu’s the articles appear, and you will find new details there.
I hope these new details encourage you to zoom deeper, to find more details, and never stop exploring!