Knocking
Striking a door with the knuckles to be admitted — the small act of asking permission before entering.
Knocking in a dream is the dream's image of the small act of asking permission before entering. The one who knocks is acknowledging that the room on the other side belongs to someone else and that the entry requires consent. The dream brings the knocking when something in your life — an approach to a person, a request being raised before a decision is made, a careful entry into a private subject — is being made by the person outside the door rather than by force. A knock answered and the door opened is the dream affirming the recognised approach. A knock with no reply, the room behind the door silent or absent, is the dream noting that the permission was asked properly and the answer has not come, and the decision to wait or to leave is now yours.