The only angles to align with the mind flayers/absolute I can think of are:
1)Delusional PC, that believe the parasite lunching on his/her brain and the mindflayers have his/her best interests at heart
or
2)Suicide cultist. Selfless/self-erasing PC that assert the renewal of the mind flayer empire as the absolute truth of his/her desire. To such a PC slavery to the mind flayers, and ultimately, death by ceremorphosis, functions as a goal in itself that transcends any personal gain, self-preservation and other "selfish" motives.
I'm not really interested in either RP option.
