[..]
The soul establishes itself.
But how far can it swim out through the eyes
And still return safely to its nest? The surface
Of the mirror being convex, the distance increases
Significantly; that is, enough to make the point
That the soul is a captive, treated humanely, kept
In suspension, unable to advance much farther
Than your look[..]

//John Ashbery "Self-Portrait in a Convex Mirror"