What is the significance of Nora slamming the door on Helmer at the end of the play?

What is the significance of Nora slamming the door on Helmer at the end of the play? Disillusioned by his own society and country, Ibsen together with his son and wife, boarded a ship and left Norway, figuratively slamming the door behind him. Fifteen years later a similarly disillusioned Nora Helmer would slam the door on stage at the end of A Dolls House, helping to change the course of modern drama. It was A …

…role. The purpose of her life is to please Torvald or her father, and to raise her children. But by the end of the play she discovers that her "most sacred duty" is to herself. She leaves to find who she is and what she thinks. For Ibsen the triumph of the individual embraces the right of women to express themselves. In the end Nora's duty to herself is more important than her female role.