First reaction is confusion responding to the word theology. Next, is the base or root being for that for this 'self' is all the finger pointing when remembering all the comparative theology studies. What comes to mind is theology is the study of God relational to the universe. Simple enough. It is not a definition of or for God per se, since for a particular theology that is a given or a known for the study. That definition for God is relative to that study what ever 'that' is.
I'm not wanting to be critical, yet the picture presents an allusion to Christian theology. That alone may be offensive enough to not get an answer from a Muslim, a Jew, a Hindu, a Buddhist, or even a North American Indian holding to traditional views. Each have a theology unique to its set of beliefs and definition of God. Hence the feeling I have regarding theology as confusion.
Great question. Not many understand that word much less things like dogma, doctrine, gnostic, theist, and on and on. Then the question becomes for this 'self' is it necessary? I waver on it from season to season. Thank for asking.