Islamic Interpretation
A door knocker in a dream represents the door attendant, the announcer, a messenger, a warning guard, a security system, or a guard dog. If the knocker is made of gold or silver in the dream, it represents honour and prosperity for the people of such a house. If one sees two door knockers at his door in a dream, it means a debt he owes to two people. If one pulls out the door knocker, and if it breaks in his hand in the dream, it means that he follows a path of innovation. (Also see Club)