Islamic Interpretation of Dreams (Ibn-i Sirin):
(Ring; Bond; Door knocker) In a dream, a link represents the religion of Islam. Holding to the like of a chain in a dream means steadfastness in oneâs religion.
In general, a door knocker in a dream represents the door attendant, an announcer, a messenger, a warning post, or a guard dog.
If the knocker is made of gold or silver in the dream, it means honor and prosperity of the people of the house.
If one pulls off the door knocker, and if it brakes in the dream, it means that he follows a path of innovation.