User blog comment:EmpyreanSmoke/Supernatural Q&A/@comment-27014555-20151105120417/@comment-27014555-20151109181315

yes i know the empty, believe me man i am a huge fun of the show.... ;) :)  i am not sure about angels because the haven got souls like humans and monster but the have only the angelic grace but i thing that they are not just some "angelic robots" who just is under orders of ther foreman, now the have personality and feelings after the fall of the heaven because metatron did that spell in final episod of season 8.... thats my opinion about the angels....

now about demons..... demons are spirits... demonic evil tortuned spirits with no humanity but they are still spirits of a human soul..... in the end they are turtuned human soul who othe haven got their own body and they posses an other.... death in season 6 said that you can do everything else in a soul but you cant broke it.... even he cant who was one of oldest and strongest being in all existance.... i dont thing that demon killing knife, angelic blades, demon bomb, angelic and cain smiting or magic can completely disappear a human soul..... all that are nothing in comparison with death's powers..... if he can t broke a soul then i think that any other lower kind cant do it.....

thats my opinion....