To dream of dreaming is quite common and it represents your subconscious becoming aware of itself. Becoming lucid during your unconscious sleep state is the beginning stages of -mastery as you learn to bridge your conscious mind with your subconscious mind.
Psychological / emotional perspective: Emotionally, mysticism requires complete submission to the idea of ultimately returning to source, whatever our belief, and to understanding our present place in the world. In dreams, an objectivity develops that allows us to view our own and others’ foibles with tolerance and dispassion. This spills over into waking life.
Material aspects: From a mundane viewpoint, the figure of a known mystic such as mahatma gandhi or the persian poet rumi alerts us to the possibilities that are available to us if we are prepared to widen our perspectives. Mystics appear in their guise of spiritual leaders to enable us to progress.