maybe it is about the loss of a loved one. ''dreaming of screaming'' maybe being at the place when the loved one was murdered. and the haunting memories bring back the pictures in his head ''I hate these thoughts I can't deny'' and that says that he cant deny that they are gone.
also, could be about war. ''For today we will take the body parts and put them on the wall'' saying all the people that die in war. they cant deny that there family member/partner is not coming back.
maybe it is about the loss of a loved one. ''dreaming of screaming'' maybe being at the place when the loved one was murdered. and the haunting memories bring back the pictures in his head ''I hate these thoughts I can't deny'' and that says that he cant deny that they are gone.
also, could be about war. ''For today we will take the body parts and put them on the wall'' saying all the people that die in war. they cant deny that there family member/partner is not coming back.