Perhaps the line:
"Like a little girl on a bed that was years ago deceased
Resurrected last night with a letter she can't trace"
Could be refering to that as a person she died when she became a whore, and now all of this has made her think about things and give her a second life of sorts. Also perhaps the guard set her free as he was planning to and now she is left with nothing but the letter in her hands.
Perhaps the line: "Like a little girl on a bed that was years ago deceased Resurrected last night with a letter she can't trace"
Could be refering to that as a person she died when she became a whore, and now all of this has made her think about things and give her a second life of sorts. Also perhaps the guard set her free as he was planning to and now she is left with nothing but the letter in her hands.