Sponges dream of sponge represents feelings about absorbing a problem. Your ability to integrate or accept a problem into your life.
Positively, a sponge may reflect receptivity to learning or knowledge.
Negatively, a sponge may reflect a tendency to absorb to much negativity from others. Putting up with too much poor treatment.
Example: A woman dreamed of smelling an orange sponge. In waking life she had confronted her husband about potential cheating and was trying to feel how bad the effects of the confrontation were. The sponge in this case may have reflected her feelings about herself having no choice, but to put up with the potential cheating. As a house wife she felt she had no choice, but to “absorb” her husbands bad behavior.