A symbol can carry a variety of meanings which, although they are all facets of the same truth, each benefit from separate inspection. Thus, under analysis the image of a gun may emerge even for the same dreamer as representing thunder and lightning, male procreation, destruction, and the toy the dreamer once used to terrify a childhood friend into parting with his candy. Each of these four meanings reflect the central theme of power, but show respectively that power can be used to destroy, to do good, to do evil, or to reinforce a childish urge to intimidate and exploit others.
When the dreamer is the victim of violence, and the emotional charge is high, the dream may represent an assault upon status or relationships, or a threat to finances, health, or general welfare. Any weapon that refuses to fire in defence of the dreamer suggests powerlessness: the dream is indicating to us that we must find better ways of arming ourselves against the challenges of the world.
For Freud guns, like steeples, knives, doors, caves and the like all represented sexual objects, whenever they appeared in dreams. For Freud, a gun or knife that refuses to function suggests sexual impotence, or the fear of sexual impotence.
David Fontana