Explain The Cold Poem by Brian Sonberg

No one survives a kiss
From the snow queen
I struggle still to keep composure
To save my sanity
But still I live inside
A chamber of her heart
Locked away in an icy prison
Waiting for a spark
Am I the shard of mirror that makes her cold?
Keeps her heart from beating?
No.
Passion and patience burn in me
And I wait to see the fire
Reflected in crystal eyes
But cold is like a dream-state
And I don't want to wake
If I stir she keeps my warmth
Me an empty shell
Cold
Unsearching