To know what is Good for you to Do you need Understanding. Your Understanding can never be greater than your Being or your Knowledge, so they both need to be acquired and accumulated.
Knowledge: if you have the Knowledge of a cookie you have the recipe in your memory and can use it to bake that one specific cookie. But you do not Understand why you add the sugar.
Understanding: if you have some Understanding of cookies you can use the Knowledge of several recipes to create the cookies you want!