We are told that there three groups of people: those who have passed through this physical existence, those who are presently in this physical existaance and those who have yet to be born. It is said those who have passed through and are now called ancestors never cease to exist as long as someone living remembers their name. When we keep someone bound to the Earth by invoking their name does this keep them from entering the Orun? Does an ancestor who has entered the Orun still keep contact with or watch over those who are still physical? Does an ancestor who has entered the Orun ever come back as one who has yet to be born?