It is one of the more popular Noh plays with the main plot about a mother who wishes for her son's success even at the cost of her own life, with added religious elements such as Nyonin Jobutsu (attainment of enlightenment by a woman) through Hokke-kyo Sutra (the Lotus Sutra).
わが命を犠牲にしてまで子の栄達を願う母の行動を主筋に、法華経による女人成仏などの宗教性も加味した人気のある能のひとつである。