People catched red-hot iron (an iron piece or bar) with their hands and walked to kamidana (a household Shinto altar) carrying it, and if they succeeded in the trial, their claim was judged to be right.
赤く焼けた鉄（鉄片・鉄棒）を手に受けさせ、歩いて神棚の上まで持ち運ぶなどの行為の成否をもって主張の当否を判断した。