Yomi

Yomi is the Realm of Blessed Ancestors. Thopse mortals who hae fulfilled their destinies and their kharma are allowed to enter this realm upon their deaths. Yomi borders very closely to Ningen-do, and the ancestors regularly cross over to provide guidance and support to their descendants as shiryo. This is one of the realms to which Oblivion's Gate opened. (F&W p. 7)