Black heart

My heart was once made of glass
Well mannered and petite, I was a lady of class
So kind hearted I wore my heart on my sleave
And every one I gave it to turned and leave
One good hit was all it took to scatter
And that good hit also broke it's platter

The pieces I took and tried to glue together
But deep down I know it was gone forever
Glass once broken can never be the same
But the breaking of objects had always been a game

So I took my heart and buried it within 
And with pieces of steel i made it whole again
With buckets of paint I painted it black
Light destroyed it one, I gave it to the dark

So i always laugh when they say your heart is black
The presence of light your heart lack
But light once broke and destroyed me
While darkness protect and restored me
I now accept it my heart is black
And in the light it will never go back.

Author's Note

what do you guys think?
what's your understanding of the poem?