In general, this is a symbol of positive transformation. It signals a favorable state for the healing of an illness that is beginning to diminish. It also can be indicative of the return of a relationship that had cooled off.... The Big Dictionary of Dreams
To dream of opening oysters shows great hunger, which the party dreaming shall suddenly sustain; or else that he shall take pains for bis living, as they do that open oysters.... The Complete Dream Book
The buying and selling of oysters is an indication that you must guard the manner of your approach in attempting to win a wife or husband. This applies equally well in the attempt to make a fortune.... The Complete Dream Book
To dream of consuming oysters is closely associated with sexual drive and pleasures. This further represents your immorality and lack of good judgment and determined will to achieve worldly pleasures and extravagance.
The sight of an oyster in your dream stands for loveliness, modesty, wealth, knowledge, and a relaxed ambiance. It also connotes the likelihood of keeping to yourself. Seeing oyster shells in your dream foretells of disappointments in your pursuit of other people’s fortunes.... Dream Symbols and Analysis
To dream of eating Oysters is a sign that you have hard work in front of you, and that you will need courage if you are to succeed. But in love affairs, it promises happiness if you are patient.... Mystic Dream Book
They represent humbleness that is capable of producing the pearl of spiritual perfection inside. The shell symbolizes fecundity and eroticism. They are also the symbol of the maternal bosom that encloses the pearl: they indicate fertility, but also loneliness and distance in unknown seas. (See PEARL)... The Big Dictionary of Dreams