Mundane meaning “of this world.” I’m quite sure that whatever the absolute is, it is not just some character-inhabitant of Toril.
Anyway, my interpretation was that the being that approaches you in your dreams and tempts you with power is the Absolute. The is connected to tadpoled True Souls, and you only get those dreams of you use your tadpole powers.
You could quite well be correct, as Matron mothers to my knowledge seldom leave the service of lollth and live. Usually getting sacrificed to said angry spider god to win back favour for the family. They love a good sacrifice them drow lol.
