According to AstroSwami the meaning of your Dream is:
A wallet can represent your feelings of selfworth. If it is filled with money, you are probably stable financially or satisfied with who and what you are. If you lose your wallet, it may be a sign that you are out of control financially or are nervous about your finances. Showing a full wallet to someone is a sign you are "laying yourself out" to someone "showing your cards" so to speak.