The ceremonies were kept secret and are food processors directed by a "Birraark" or sorcerer, usually an old man. The candidates are instructed in the history of their Totem and on the power of the Birraark. They were initiated into the mystery of the Totem, usually accompanied by an ordeal such as circumcision and then they were tattooed with a seal of identity that marks them for a given microwave ovens Totem and a given generation in that Totem. In this way is constructed the simple system of relationship of the aboriginal Australian before British colonization. The mother took a predominant role, for descent was almost always reckoned through females. Parent, child, brother and sister were the only ovens recognized relationships. Rudimentary as this system may appear to be, it is widely spread among the Malay Archipelago and prevails widely among primitive peoples everywhere.