During Act 2, Mrs. Alving has a speech that sounds rather awkward; however it is the most important speech of the play.
MRS ALVING: I'm haunted by ghosts. When I heard Regina and Osvald out there, it was just as if there were ghosts before my very eyes. But I'm inclined to think that we're all ghosts, Pastor Manders; its not only the things that we've inherited from our fathers and mothers that live on in us, but all sorts of old dead ideas and old dead beliefs, and things of that sort. They're not actually alive in us, but they're rooted there all the same, and we can't rid ourselves of them. I've only to pick up a newspaper, and when I read it I seem to see ghosts gliding between the lines. I should think there must be ghosts all over the country - as countless as grains of sand. And we are, all of us so pitifully afraid of the light.
Mrs. Alving first suggests that Osvalds advance on Regina made her think about these ghosts. She thinks about these ghosts because what Osvald is doing to Regina, is extremely similar to the way Osvald's father behaved. Mrs. Alving wasn't too fond of the father's behavior, that's the reason she says this statement in a very frightened tone. Next she states that these ghosts are also dead ideas from the past still living in us. To