To dream of someone knocking at the door usually symbolizes wealth or opportunity to come to the door, so be cautious.

If you dream of someone ringing the doorbell, it indicates that you will receive a message from a distant friend.

To dream of knocking on the door reminds you to make friends carefully, so as not to get involved in troubles by friends who act rashly and irresponsibly.

To dream of a blind person knocking on the door indicates that you will get a windfall.

Original Dreamsmeaning Book

Knocking, bad luck is coming. Dreamsmeaning Book

Case study of dreaming of knocking on the door

Dream description: I dreamt that I was watching a financial report program on TV, and that program attracted me. At this time, I heard a knock on the door in the corridor. I knocked several times, but I didn't hear the owner of the room talking. I thought to myself that the owner of that house might not be at home. (Male, 29 years old)

Dream analysis: The sound of knocking on the door in your dream indicates that your wealth is very good. If you dream of knocking on the door, you are reminding you to be cautious when making friends and beware of irresponsible friends who speak nonsense, so as not to be deceived. If you dream of hearing a knock on the door, or seeing someone knocking on the door, it is a good dream, which indicates that your wealth will be prosperous in the years to come.

If you dream of ringing the doorbell, it indicates that your career is flourishing.