To see your mother in your dream represents the nurturing aspect of your own character. Mothers offer shelter, comfort, life, guidance and protection. Some people may have problems freeing themselves from their mothers and are thus seeking their own individuality and development.
To dream that you are having sex with your mother implies that you are becoming like your mother. No matter how hard you try to deny it, you feel her influence. The dream may also be a graphic way of how you need to incorporate some of her qualities within your own self.
To dream that you are having a conversation with your mother denotes a matter that has preoccupied your mind and you are not sure how to deal with it in your waking life. It indicates unresolved problems that need to be worked out with your mother. To hear your mother call you in your dream suggests that you have been negligent in your duties and responsibilities. You are pursuing down the wrong path.
To dream that you are being told that your mother is dead means that you are feeling neglected. You feel that your mother or some motherly figure in your waking life is not being responsive to your needs. She is not showing enough compassion or other emotions.
If you are not a mother in your waking life, but dream that you are a mother, then the dream is a metaphor that you need to show more of your nurturing and caring nature. You need to be more compassionate. Perhaps you are coming across as too indifferent.
Dreaming about your friend’s mother symbolises your idealistic notions of what a mother should be. More directly, your friend’s mother may be a motherly figure for you. Perhaps she offered you advice or comfort in your time of need.