Let's get a few things straight:
- The interpretation of dreams has no reliability or validity as an assessment or intervention technique
- Dreams are just random firings of neurons.
Our brains operate on a constructivist model, where it seeks out to organize disparate events and happenings into a coherent whole. See for example many of the conspiracy theories from JFK to a second shooter in the VA Tech shooting.
So, if someone is made to visualize certain people and hear certain voices in their sleep due to random firingsof neurons, the brain will seek to organize it into a whole, a story, a gestalt. The story is for all intents and purposes, meaningless.