If you have dreamed of finding a key in the sea: You may experience stress in matters of concern, you may have to push yourself too hard to get along better with the people around you. Finding a key in the sea in a dream is a harbinger of being rich financially. This dream can sometimes be interpreted to have an inheritance, to gain a collective income, to get a comfortable job. It is considered as a sign of good developments that will occur in one's life, being happy and achieving dreams.