If an unmarried person sees himself close a new door, it signifies marriage to a pure and righteous woman. For a married person, it signifies the opposite. Sometimes closing one or more doors signifies remaining permanently in one's work. Closing a lock signifies marriage.
Seeing one's door closed signifies giving importance to and guarding worldly affairs. Trying to close the door of one's house but being unable to do so signifies turning back from a situation in which one is powerless.