User blog comment:Blomstar/Souls & Darkness & God's endgame ?/@comment-95.115.225.62-20151011132351/@comment-27066083-20151011160344

People said same about Death for long time, but what eventually happened: he died. That makes me think that there ain't any entities in Supernatural Universe than cannot be killed/destroyed.

Though I find your aspect very interesting (if I did understood your aspect) that Darkness would be some kind formation of pure evil, natural force that cannot be destroyed, but that would mean there should be opposite for him also, pure good (light?) that cannot be destroyed either ? And even if God would be pure good, he surely ain't indestructible (that was confirmed by Death).

I might be wrong, but I believe that Darkness is "just" very powerful entity like God, just more powerful than God, but not something that cannot be killed/destroyed.