The Primordial Yin/Yang
In Thelema: Hadit and Nuit,
in Vajrayana Buddhism: Samantabhadra and Samantabhadri.
Hadit/Samantabhadra represent all conscious experience, all expression of mind and motion, the dynamic aspect, the verb.
Nuit/Samantabhadri represent all space and the body of possible experiences in space/time, the static aspect, the noun.
If you go deep down enough with matter you find that there is no real separation or difference between the sub-atomic particles making up my balls and the wooden table.
The Buddhist concept of Rigpa asserts the same of mind, consciousness–like there are two grand objects overlapped together in existence: Space-Time/Matter and Awareness/Consciousness/Rigpa.
That voice inside your head might just be playing an amnesiac game of pretend. It could be the same damn voice in everyone’s head.