If you have dreamed that the key was lost in your dream: Therefore, it is useful to make some changes to speed up the processes. If you cannot brake yourself, you may experience great unpleasantness. Losing the key in a dream means that the person who sees that he has lost the key to the house will have problems with his family and his peace will be disturbed. At the same time, it is a harbinger of displaying irresponsible behaviors and that the person should take care of himself. Losing a business key portends unemployment and financial difficulties.