In Korean tradition, dreaming of a crab is read as mixed. It is most often tied to 재물, 직장.
The crab walks sideways — matters take a roundabout path. Catching many was read as small gains gathering; being pinched, someone getting in the way.
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