In Korean tradition, dreaming of outer space is read as mixed. It is most often tied to 전반, 학업.
Not in the old manuals, but read as a sky dream: seeing the cosmos was taken as grand purpose and wide vision; drifting in it, being adrift from real life.
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