I dreamed that my old neighbor across the street knocked on my door in Tang Yin, Tomb-Sweeping Day when it was dark.

This is an inner worry caused by guilt and belongs to the subconscious. In the dream, the subconscious ran out to dream.

You have this dream because you feel guilty and uneasy about your old neighbor.

It is necessary to make some compensation if you want to eliminate your inner anxiety.

Say something, do something and try to make it up to her, and your heart will calm down.