Can you learn information about your own thoughts and emotions by talking to dream characters?

e,g, If I'm lucid and I ask a DC, "What is my passion/calling in life" or "What should I do as a career?" could I get an answer worth considering or acting on?

What about questions about your feelings and behaviour, e.g. "Why do I feel this way about x" or "Why don't I like x, and how can I change that?" or changing your personality, ("How can I be more relaxed/confident?" "How do I overcome my fear of x?") Basically questions one might ask a therapist.

Has anyone tried this with any good results?