What do dreams about Keys mean?
Key Dream Meaning
Clearly this can be a phallus symbol and to dream of placing a key in a lock can represent sexual intercourse. Alternatively the key may be a symbol for a solution to a problem. Your dreams may be showing you the way to unlock the door and so remove the psychological or material obstacles that block your progress.
To dream of finding a key is a symbol of good fortune and a bunch of keys indicates profitable business dealings.