The uncanny, by Freud.

The uncanny is the subject of aesthetics because it has to do with a certain kind of feeling or sensation with emotional impulses. But in general aesthetics has neglected to study the uncanny, preferring to concentrate on beauty and generally on more positive emotions such as: the attractive, the sublime...etc. The uncanny is something fearful and frightening, and such as it has been neglected in the history of aesthetics. Freud will wed psychoanalytic and …

…Unheimlich = unconcealed, unsecret; what is revealed; what is supposed to be kept secret but it is revealed. Schelling's definition: "Unheimlich is the name for everything that ought to have remained secret and hidden but has come to light." The word heimlich thus has a meaning that overlaps with its opposite, unheimlich; the semantics of this word come full circle. Freud's thesis: unheimlich, the uncanny = revelation of what is private and concealed of what is hidden.