A key in dreams symbolizes unexpected changes, opportunities, success, power, control, and secrets. You may be locking away your own inner feelings and emotions. You feel socially rejected or emotionally isolated.

To dream that you lose your key, foretells you will lose your position in real life. It also denotes that unpleasant adventures will affect you.

If you find your keys, then you will find the answer to a problem that's been bothering you.

To receive a key in your dream denotes that you will find a way to resolve troubles in your waking life.

A dream that you give your key away, suggests that you have given up control of some situation or responsibility.