The transcendent unseparatedness between subject and object or, the same, observer and observed is neither addressed nor realized in the forum of public thought. It is only theorized at best by academics. Few intuit this transcendent unseparatedness, directly, except to imagine it.
Is there another name for this transcendent unseparatedness between subject and object? In Buddhism it is called the light, or the clear light, or the radiant light, or luminosity and many other names. Zen master Danxia丹霞 said: “This abundant light, wherever you are, in every situation, is itself the great way.” In the older canon we run across it in the Itivuttaka and elsewhere.
Light-bringers, dhamma-speakers, open the door off the deathless, set free the many folk from bondage.
It should go without saying that this light is absent in our world. Yes, we can imagine it but this is not the same as the light the Buddhas talks about whereby the dualizing nature of sensory consciousness (vijñāna) is overcome.
The hard reality of our dualistic world is maintained by the seeming difference between subject and object. This difference can either be great or small but still a difference exists or seems too. From this division or gap grows fear and mistrust, even alienation and a host of other negative things.