The sword was then enshrined in the Imperial Palace as a 'shintai' (an object of worship housed in a Shinto shrine and believed to contain the spirit of a deity) of Amaterasu Omikami along with the 'Yata no Kagami' (the eight-span mirror), but during the age of Emperor Sujin (148 B.C. to 30 B.C.) it was enshrined outside of the Imperial Palace with the 'Yata no Kagami' by order of Princess 'Toyosukiiribime no mikoto.'
以降、皇居内にアマテラスの神体として八咫鏡（やたのかがみ）とともに祀られていたが、崇神天皇（紀元前148年-紀元前30年）の時代に皇女豊鍬入姫命（豊鋤入姫命）により八咫鏡とともに皇居の外に祀るようになった。