What does it mean to dream about anger?
Anger in a dream often points to a boundary that feels crossed or a frustration you have not voiced, and the target in the dream is worth weighing against waking life.
Four ways to read it
Each reading below comes from a named tradition and a cited source, so you can see where it came from and decide what fits your dream.
Freud
Freud would read dream anger as an outlet for feeling that waking life keeps in check, often aimed at someone close. He held that hostility we cannot admit can surface in sleep, sometimes disguised, sometimes turned on the self. The dream lets the pressure move.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung would see anger as energy that has met an obstacle, and would ask what value or part of the self it is defending. He linked sudden fury to the shadow, the disowned side that erupts when pushed down too long. The heat can show where the self insists on being respected.
Jungian concept (our summary).Modern
Continuity research ties dream anger to waking conflict and frustration that the mind keeps processing in sleep. Some emotion-regulation accounts suggest dreaming gives strong feeling a place to be worked through at a remove. Reading the dream against a real grievance tends to be more useful than reading it as prophecy.
Continuity hypothesis (our summary).Mythological
The wrath of Achilles opens the oldest epic, and storm gods across cultures spoke their anger in thunder. Myth often paired anger with justice, the fury that answers a wrong, and with ruin when it ran past its cause. It was a force to be reckoned with, not simply scolded.
Rosmerta Publishing editorial synthesis (after Bulfinch; Brewer).