Nothing
Another response:
Dreams about one's mother are quite common. The mother is the most important person in the world to the infant and young child, and so forms the basis for our earliest awareness of others beyond the self. Because every human being was once an infant, every human being carries fundamental memories of the mother in the subconscious mind. These memories are carried through life, and appear in both casual and significant dreams.
It is impossible to give a single meaning to dreams about the mother. Often they represent a longing for safety and comfort. Or, they could represent a longing for female affection. Yet another meaning is that the dream mother represents an aspect of the dreamer's personality that is parental, caring and responsible. That dream mother might represent a need for the dreamer to take better care of her/himself.
There are too many possibilities to provide a meaningful answer. The dreamer might be away from home and missing the family, or the dreamer might be confronting adult decisions that were previously made by parents, or the aroma of cinnamon cookies might have triggered memories of Mom's kitchen. The real meaning of the dream depends on many factors including the emotional tone of the dream, the dreamer's relationship with Mom, and the dreamer's particular memories and experiences.
It could mean that you miss your mom or that something during your day brought her to your mind, perhaps without your being aware of the thought. Your dream does not mean that your mom was thinking or dreaming about you, although it does provide an excellent excuse to pick up the phone and chat with her.
Depending on the dreamer's age and real-life situation, the dream might suggest that it is time to rely on one's self rather than being dependent on parents or other parental figures.
unresolved issues about her
This dream reflects the dreamer's feelings about her mother. It seems that the dreamer might fear her mother does not trust her, or perhaps that her mother is overly eager for grandchildren.
to dream of her is supposed to be really good but it all depends on how you saw your dream
The dream suggests that the dreamer realizes the mother is overwhelmed in some way.
This is a comforting dream reflecting your mother's love that continues to bless you from beyond the limits of this life.
Being very tall suggests authority or influence. This dream suggests that the mother is viewed as having great authority.
This dream expresses your own sense of comfort and security. You feel confident and aware of your self-worth.
You're gonna be proposed to!
This dream could reflect the dreamer's feelings of guilt, knowing that the mother would be frightened by the dreamer's behavior.
It is a safe bet that you would have liked your mother to have met your new boyfriend.
This dream seems to express your actual experience: your mother-in-law came into your life (with marriage) then she was gone (when she died.) The emotions felt during the dream itself might add more significance, as the dream could be part of the grieving process.
The question is not clear, since it is impossible to have an "ex-mother." You might have a former mother-in-law, who is the mother of your ex-wife, or you might have a "late mother," meaning that your mother is deceased. You also might have a former step-mother, who is an ex-wife of your father. In any of these situations, the meaning of the dream would depend on what happens in the dream, the feelings you experience in the dream, and what, if anything, you and the "mother" say or do in the dream.