(Japanese mythology) a food goddess, daughter of 伊弉諾 (Izanagi); as told in the 古事記 (Kojiki), she offered food to 素戔嗚 (Susa no O) after he was expelled from heaven for his transgression against 天照 (Amaterasu), by pulling food out of her orifices, which caused him to kill her in disgust; from her corpse, grain seeds and silkworms sprouted out, and were collected by 神産巣日 (Kamimusuhi)

(literally) know the other side and yourself, a hundred battles will not be perilous