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.
The speaker of this poem is a mirror. It begins by saying that it does not have a preconceived idea of what it’s looking at: it will take in and reflect exactly what it sees, and will not be affected by how much it hates or loves you. The mirror reflects the truth. 
 This line, and the poem as a whole, could also reflect the numbness that resulted from Plath’s severe depression: she became unable to feel anything, let alone love or hate anything. 
 The short, sharp sentences reflect this numbness and lack of feeling. There is no suggestion of warmth or softness in this opening.
Mirror