transition said:

possibly a good starting place, for thinking about it, is consider the ~180degree field of view of the external world, some of which you are in(you can see your limbs for example), now consider the feel-see for what is behind the eyes, self-aware conscious creatures might be said to inhabit the interface, they sense the interface as substantive goings on, a representational thing.

and in that is something of the origin of abstraction about stuff behind the eyes(and its relation to stuff behind the eyes of others) – meta-awareness

related – anticipating mental states of others, including desires and beliefs, interactions of, what orientates a mind, motivation, inclines feelings, thoughts, and action, and even apparently thoughtless actions.

The eyes have it.