What does it mean when you dream about your deceased mother in-law I never met?

Dreams about death almost always reflect a significant change in the dreamer's life. Other persons - such as an ex mother-in-law - symbolize some aspect of the dreamer's self. A mother-in-law is a mother figure, suggesting the nurturing and care-giving aspects of the self. An ex-[anything] refers to something that is past and no longer an active influence in one's life.

> for other examples of dreams about the dead, see the link below.