Out of the heart proceed evil thoughts

“Out of the heart proceed evil thoughts” names a difficult limit to the idea that a dream’s disturbing contents are merely alien to the dreamer. In the argument surrounding the expression, dreams reshape thoughts and impulses that have already passed through waking life; their dramatic form may distort or enlarge them, but does not make their underlying material wholly foreign. The phrase thus links Freud’s theory of dreams to moral responsibility and to his reading of tragic literature.

The Dream and Its Moral Material

Freud’s account draws on an earlier discussion of whether people bear responsibility for immoral dreams. Hildebrandt allows that dreams compress complicated thought into brief dramatic scenes and confuse their ideas, qualifications that make the dream’s apparent immorality difficult to judge. Yet he resists absolving the dreamer altogether: the dream’s primary motive, he argues, must have passed through the waking soul beforehand as a wish, desire, or impulse. The dream does not originate that material so much as imitate and expand it.

The expression from the Gospel of Matthew gives this claim its concise formulation. If evil thoughts proceed from the heart, the dream’s troubling actions cannot be treated as having no connection to the person who dreams them. Hildebrandt’s conclusion is measured rather than absolute: responsibility attaches not to the dream in its entirety, but to some part of the material from which it is formed. Even when the dream’s extended enactment can be dismissed with a smile, he argues, its waking source cannot be laughed away.

From Private Impulse to Cultural Argument

The phrase also belongs to the book’s wider effort to place dreams within cultural history rather than confine them to medicine. Freud surveys earlier theories and invokes classical writers, including Aristotle, Lucretius, and Cicero, before presenting dream interpretation as a scientific inquiry into a longstanding belief that dreams carry meaning. His references to literature and inherited religious language make the moral implications of dream life part of that larger cultural argument.

Freud’s use of classical tragedy makes the connection especially explicit. He presents the story of Oedipus as evidence that love for one parent and hostility toward the other belong to a broadly human pattern of childhood impulses. In the tragedy, a delayed recognition reveals that Oedipus has killed his father and married his mother without knowing their identities; the discovery shatters him, and he blinds himself and leaves his homeland. Freud argues that the play’s continuing force depends not simply on an arbitrary fate imposed from outside, but on the audience’s recognition of impulses that may belong to its own early psychic life.

Tragedy, Repression, and Recognition

Freud sets Sophocles’ Oedipus against Shakespeare’s Hamlet to show how the same underlying material can appear differently across periods. In Oedipus, the childhood wish is openly realized in the plot. In Hamlet, Freud argues, it remains repressed and becomes visible through inhibition: Hamlet delays revenge on the man who has displaced his father and taken his place beside his mother.

The play, as Freud reads it, complicates any simple claim that Hamlet cannot act. He kills the concealed eavesdropper in a sudden reaction and later acts deliberately to send two courtiers to their deaths. What holds him back from avenging his father, Freud suggests, is the particular identity of the man he must punish: Hamlet’s revulsion turns inward as self-reproach because the crime recalls wishes that he cannot acknowledge. In this reading, the phrase about evil thoughts proceeding from the heart does not declare a person wholly guilty for every dream or impulse. It points instead to the unsettling continuity between concealed desire, the dream’s dramatization of it, and the moral self that would prefer to regard it as foreign.