The sorcerers of the subtle regions are the topmost echelon in the hierarchy of ghosts (demons, devils, negative energies, etc.).
Power and Strength of Sorcerers
Spiritual research conducted by the Spiritual Science Research Foundation (SSRF) shows that the relative spiritual strength of sorcerers is in the range between 100,000 units to infinity. This is compared to the relative strength of a common ghost which is 1. This means that the power of the highest Sorcerer would be almost comparable to the unmanifest form of God.
How they function