I understand it as, “when death is defeated, there won’t be real enemies anymore, because there is nothing so terrible someone can do to you or your friends if they can’t kill”. Of course it’s not fully true, Neville’s parents who were driven insane by torture are in a state as bad as death if not worse. But then, it can be considered that destroying their personality is killing them. And most importantly, it’s a motto, mottos are always a bit oversimplification and exaggerating.
I definitely see much more twisting in understanding this motto as “destroyed” is just “make peace with” than as “last enemy” meaning that once death if defeated, there aren’t any true enemies left.
I understand it as, “when death is defeated, there won’t be real enemies anymore, because there is nothing so terrible someone can do to you or your friends if they can’t kill”. Of course it’s not fully true, Neville’s parents who were driven insane by torture are in a state as bad as death if not worse. But then, it can be considered that destroying their personality is killing them. And most importantly, it’s a motto, mottos are always a bit oversimplification and exaggerating.
I definitely see much more twisting in understanding this motto as “destroyed” is just “make peace with” than as “last enemy” meaning that once death if defeated, there aren’t any true enemies left.