According to the "Nihonshoki," prior to the Jinmu tosei (eastern expedition of the Emperor Jinmu), Nigihayahi received ten kinds of Shinpo (ten kinds of sacred treasures) from Amaterasu and he took Amenoiwafune ship to descend to Kawakami in Kawachi Province (Katano City, Osaka Prefecture).
『日本書紀』などの記述によれば、神武東征に先立ち、アマテラスから十種の神宝を授かり天磐船に乗って河内国(大阪府交野市)の河上の地に天降った。