In Korean tradition, dreaming of a dinosaur or monster is read as inauspicious. It is most often tied to 전반.
Absent from old manuals, but read like any great beast: a problem or fear too big to face. Defeating it means overcoming that fear.
Tradition reads the symbol as an omen; psychology reads the same dream as a mirror of your present state. Describe your dream and both readings appear together. Interpret your dream