In Beloved, what does the narrator mean by the warning at the end: this is not a story to pass on"...

The statement that comes in the last lines of Toni
Morrison's Beloved is certainly a puzzling one.  Since the novel is
telling the story about the reprecussions of slavery  through the pasts of her
characters, Morrison is certainly "passing on the
story." 

Yet, if you read closely, this line that is
repeated at least three times in the last chapter refers specifically to Beloved.  Each
of the main characters--Sethe, Denver, Paul D--has confronted Beloved, and somehow come
to terms with the past.  Paul D, through his contact with Beloved, is able to release
the emotions that he had stored away in his tobacco tin; Denver, who clung to Beloved
out of loneliness, forsakes her to save her mother; and Sethe, who nursed Beloved in an
attempt to attone for the murder of her child, is finally able to let her go with the
support of her daughter, Paul D, and the rest of the
community. 

There is no need to pass on the pain of the
past--which, I believe, Beloved symbolizes.   It is time to continue the process of
healing and looking ahead.  It is time for each of the characters to start anew and
realize that they can transcend the dehumanization of slavery and recognize that they
"got more yesterday than anybody.  We need some kind of
tomorrow."