Keys are important objects in one’s life, for they have the ability to unlock things and divulge treasures hidden away from us. In dreams, keys may be representative of your self-identity or soul. Thus, to see yourself losing keys in a dream, it suggests that you feel like you are losing a part of yourself. What once used to be unique and individualize you from others is now lost. You fear that you are losing your current status and position in the world.
This may also be symbolic of you losing the shield that sheltered you from others since the keys to unlock this barrier are no longer in your possession. As a result, you feel vulnerable and are scared that people will take advantage of you. Losing keys in your dream may rival your feelings of losing connection with loved ones and your social network is slowly dimming down.