Child of Heaven (Supernatural)

Let me tell you about her... the girl with the dull green eyes
They used to be bright and filled with life, but that was years ago
Now she wanders aimlessly with no direction, her map torn, her compass broken
She used to fly through the sky on golden wings
They beat as powerfully as her heart, the blood in her veins coursing with greatness
But now what remains is a human so broken not even time will tell
Who can fix the girl branded by fate
Her eyes shimmer and her lip trembles but she is not afraid of Death's grip
She greets him like an old friend, for Life and Death have always fought over her soul
But it seems that in the end none of them won her...
But who did?

starts in season 1 episode 12 and skips around a bit to avoid lagging in the story :)