1- Both as a carrier of water and of sustenance, the gourd appearing in a dream may be a great deal to do with our own view of femininity and our ability to nurture.
It is also the ability to link into untapped information and knowledge.
2- The gourd is often a symbol of mystery. As something unusual it can denote secret information, sustenance or nurturing. Because it is is used as a carrier after it has fruited, it can often represent the physical body.
3- A gourd can symbolise the mystery surrounding spiritual progression. At this time we may feel that there is little to go on.... Ten Thousand Dream Dictionary
Porous and soft, a sponge may symbolically represent spongy exterior boundaries. It may comment that you too easily absorb the energy of others. As in “sponging of£ someone,” it may mention that you could be using people or are too dependent.... Ariadne's Book of Dream
Dreams of a sponge signify that you are receptive, allowing, and suggestible to the energy that is around you. You might be coming to terms with how you feel about others sponging off of you. Or your dream might be showing you where you must become more -reliant and considerate of the boundaries set by others. Also, this dream reflects your resilience, in that your life circumstances can squeeze you dry, but that you quickly expand back to your natural way of being. Consider the feeling tone of this dream. See Drink.... Strangest Dream Explanations
If you washed with the sponge, you will get credit for doing a good job at something.
If you squeezed water out of it, you will get money. But if you tried to squeeze the sponge and found it dry, you are being warned against taking any kind of risks with your money.... My Dream Interpretation
The meaning of this dream varies according to the action, but its omen is generally good.
If you washed with the sponge, it forecasts satisfying recognition for work well done; if you squeezed water out of it, you can expect an increase in your income; but if you tried to squeeze it and found it dry, you are being warned against indulging in any form of gambling at the present time.... The Complete Guide to Interpreting Your Dreams
Soaking up everything, both positive and negative energies; not in control. Picking up everyone else’s trips. Also, soaking up knowledge; very receptive, but need to discriminate, balance your intake. Sponging off other people’s energy rather than generating your own.... The Dream Books Symbols
The essence of a sponge is its ability to absorb. We use this simple plant life as a metaphor for learning at an aggressive rate, as in soaking something up like a sponge. In a dream, a sponge may indicate a desire or present circumstance in which there is a lot for you to take in.
The context in which the sponge appears in the dream should offer some clues about what area of your consciousness is currently expanding.... Complete Dictionary of Dreams