I've come to think of consciousness as a continuum of states, from fully awake cogitation to daydreaming to the altered consciousness of hallucinations and dreams. Still, interpreting dreams can only take place when we're awake. I believe meaning is what the mind makes and wants. It's essential to perception and to consciousness in all its forms. But the important meanings of psychotherapy are subjective. There's a lot of research that confirms that drem content reflects the dreamer's emotional conflicts.