Akasha / The root
"God". The Root. The source of everything in the universe and the end of everything in the universe. The place where all phenomena originates. The goal of most academic magi is to reach it. That is to say that it is everything, and contains absolutely everything that has ever happened; and of interest to those who seek it (Mages) lies all the knowledge of spells, great magic and miracles. It is the end of everything and the beginning and serves as basically the C:/ of reality. Reaching it would make someone into basically a god / the God.