sure "Ye who have laid your loved to rest, And wept above thier lifeless clay, Know not the anguish of that breast Whose loved are rudely torn away" I beleive that the narrator is trying to say "Those who have loved ones that have passed away and have wept before their dead bodies are nothing when compared to the slaves who have been forcefully taken away from thei
I believe that the narrator is trying to say "Those who have loved ones that have passed away and have wept before their dead bodies are nothing when compared to the slaves who have been forcefully taken away from their loved ones. -- Yes
I also believe that the author used comparison-lifeless clay= slaves are compared to the dead diction-lifeless cl