As Charlotte Brontë, Emily's older sister wrote, "Heathcliff, indeed, stands unredeemed", which adds to the uncertainty over whether he not only repented for his sins but was actually a real human being after all; since Lockwood's vision of Catherine at the window was preceded by a dream of a fire-and-brimstone sermon in a church, it is possible that both Heathcliff and Catherine are damned; Catherine herself expresses doubt as to whether she could ever be admitted into Heaven. The uncertain fate of Heathcliff's soul, combined with the mystery that Heathcliff's character leaves behind, ends the novel in a mesmerizing, eerie way, justifying Heathcliff's enduring status as an iconic anti-hero of literature.