In Korean tradition, dreaming of a waterfall is read as very auspicious. It is most often tied to 재물, 직장.
The waterfall is wealth pouring in and a surging fortune. Seeing a great fall or standing beneath it was read as money arriving all at once.
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