The features of metaphors in “prophetic” dreams
... following features are identified as specific: the representation of the specific through the specific (abstract semantics is ensured by metonymy), spontaneity, integration into cultural contexts, elimination of functional borders between nominativity and predicativity, closeness to the object and cognitive metaphors. The author arrives at a conclusion that, in dreams, the metaphor brings together the rational and irrational spheres.
1. Арутюнова Н. Д. Языковая метафора // Лингвистика ...