a tiny window frozen over.
adrift and hung tauntingly highly, so high that you would have to reach to see outside of it.
blinding white as it bleaches your eyes.
it was just white when you looked; white, but the brightest white you’ve seen in your life.
a cold white.
the window was covered with snow from the storm that had fallen the previous night.

An opaque mirror or an eye hiding what lay buried on the other side.