If positive, then this is the part of you that is nurturing, loving, and willing to open your heart. It is the part that teaches others, is wise, and aims to empower others. If negative then it is the part of you that can be controlling, overbearing, and expecting others to love you more than another. It is the part of you that closes off your heart chakra, plays the martyr, and belittles someone if they do not do as you expect them to. Family dreams are often reminders to consider ties or connections to others and to look at personal values. Mother is a projection of yourself in some way.
See Female, Family, Relatives, Yin, Self, Daughter, In-laws, Mother-in-law, Father-in-law.