If you dream of getting a windfall, it may not come true. The reverse might happen. Especially if you had been wanting money. Your dream could have been triggered because of wish fulfillment.
If you dream of dropping money, it means you’ll lose money in waking life. Perhaps your conscious or unconscious mind has processed information that tells you will lose money in a specific endeavor.
If your dream sees an empty wallet/ purse, it means you will be short of money for a long time.
If you dream of finding money, it is considered bad luck to keep this money.
The opposite applies. If you dream of giving away money, then it is good luck.