In Korean tradition, dreaming of a ghost is read as inauspicious. It is most often tied to 건강, 전반.
A ghost is unresolved worry and fear. Being tormented or paralysed in sleep was read as exhaustion or a nagging matter; driving a ghost off, misfortune repelled.
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