Every real religion, that is, one that has been created by learned people for a definite aim, consists of two parts. One part teaches what is to be done. This part becomes common knowledge and in the course of time is distorted and departs from the original. The other part teaches how to do what the first part teaches. This part is preserved in secret in special schools and with its help it is always possible to rectify what has been distorted in the first part or to restore what has been forgotten.