Memory, Rememory, and the Power of the Past

In chapter 9, the novel talks about the issues of memory, rememory and the power of the past a this pointof the book.  The theme of memory is being portrayed because of the power of the past that is taken place with Sethe and Beloved.   "Sethe was actually more surprised than frightening to find that she was being strangled" (pg113).  It seams to me by during this scene of the novel, Beloved came back to Sethe becasue the power of her memory that Sethe inflicted upon her and came back to hurt her becasue of the concept that Sethe killed Beloved and Beloved wanted vengence.  This also shows the power of the past becasue once you do something as extreame as kill someone, there is no hiding the past and moving on from it and it could still linger on to the present.  And Beloved came back as a ghost because she wanted to show Sethe how much she was hurt becasue of her love and fondness she had towards Sethe even though she killed her.  This concept is hidden throug out the story because as reader, we think that Beloved is a real person that has a friendship with Sethe.   But really, Beloved is a ghost that came back becasue of the power of her past.  Even Though Beloved still was angry from the past about what Sethe did to her, she still can't take away her love that she has towards Sethe which is why her name is beloved.