The eight armed representation is derived from the 'Daibenzaitennyo-hon' (chapter 15) teaching of the "Konko Myosai Sho-kyo" (Golden Light of the Most Victorious Kings Sutra), and the eight hands hold objects including a bow, arrow, hoko (long-handled Chinese spear), kanawa (iron ring) and lasso.
8臂像は『金光明最勝王経』「大弁才天女品（ほん）」所説によるもので、8本の手には弓、矢、矛（ほこ）、鉄輪、羂索（けんさく、投げ縄）などを持つと説かれる。