I am silver and exact. I have no preconceptions.
Whatever you see I swallow immediately
Just as it is, unmisted by love or dislike.
I am not cruel, only truthful---
The eye of a little god, four-cornered.
Most of the time I meditate on the opposite wall.
It is pink, with speckles. I have looked at it so long
I think it is a part of my heart. But it flickers.
A mirror is timeless, possessing an eternal gaze. Like a god, the mirror is omniscient, as it is able to see and reflect the truth. 
 The lack of a capitalization in “god” suggests that it could even be  any  god, not just God Himself. 
 Note that ‘little god’ is an  oxymoron .  It is powerful but with limitations and walls to contain its vision.
Mirror