close your eyes and imagine all your emotions on paper:) i know it may seem weird just try it it might work. or just start writing...that little light bulb in your head is bound to light up sooner or later. once you find a key word or phrase im sure the words will flow.
the bubonic plague or the black death. i know that ashes ashes we all fall down meant they burned the bodies after the people died i forgot what the other verses meant. look it up on google