a box of darkness

I caught a glimpse of this poem as I was Blog-Surfing about a week ago, and I haven't been able to get it out of my head. I have no clue if this is the entire poem or just a snippet. Regardless, it grabbed a tight hold of me and sent me back to remember the man who gave me 'a box full of darkness’. Now, I know why. Thank you.

"Someone I loved once gave me
a box full of darkness.

It took me years to understand
that this, too, was a gift."*

*The Uses of Sorrow
Mary Oliver
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