Violence in a dream: what does it mean?
Aggression appears in dreams far more often than people expect, and there is no association between violent dream content and violent behaviour awake.
How do the four traditions 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. The four often disagree, and that is the point: a symbol rarely means one fixed thing, and the distance between Freud, Jung, modern research and myth tells you more than any single verdict could.
Freud
Freud held that a dream can stage what the waking mind refuses, and did not take the staging for an intention. That distinction is the whole of the useful reading here and it is worth holding on to.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
A Jungian reading would call this shadow material, which means something recognised rather than acted on, and would treat a dream as exactly the safe place for that recognition.
Our summary of a Jungian reading, in our own words, not Jung's. See Jung, ed., Man and His Symbols (1964).Modern
Content analysis finds aggression in a large proportion of reported dreams, more in men's than women's in the older norms, and the finding that violent dreams do not predict violent behaviour is well established. Anyone frightened by their own dreams can take that as settled. If the dreams are frequent and distressing, that is worth taking to a doctor, since sleep disorders can produce them.
Our summary of the norms in Hall and Van de Castle, The Content Analysis of Dreams (1966). The norms are old and the samples were students.Mythological
Traditions are full of licensed violence, in feud, in ordeal and in sacrifice, and the rules around each exist precisely because unregulated retaliation destroys communities.
Rosmerta Publishing editorial synthesis (after Frazer; Bulfinch).How can writers use this symbol?
The same symbol, read as craft material rather than as a dream. What it does on the page, how genres use it differently, and what happens when you turn it inside out. Written for novelists, screenwriters and poets who need the symbol to actually work, and it ends with something to try.
In literature
Violence on the page is a technical problem with an ethical edge, since prose that renders it well makes it exciting, and a writer has to decide whether that is what they wanted.
Rosmerta Publishing editorial synthesis. Our own words; no quoted text.What it does in a story
It ends the possibility of negotiation, which is why it closes scenes rather than opening them.
Genre conventions
Genre fiction choreographs it. The literary answer is usually to write the aftermath and let the reader supply the event.
How to subvert it
Write it entirely through what a room looks like twenty minutes later.
Try this
Write four hundred words of somebody who did not intervene.
Only the first of these names a source. What a symbol does in a story, how genres treat it, how to invert it and what to try are our editorial judgement as writers and editors, not findings from a body of research. They are offered as craft opinion and should be argued with.