User blog comment:FairyRaven/Fairy Tail Chapter 416: Tartarus Arc: Final Part, Review and Commentary/@comment-24546844-20150119160603/@comment-9595671-20150119203521

Here's the ironic thing, END is the one that's stated to be the only person who can kill Zeref.

And at the chapter's end the words referred to Natsu as a light. So... basically I'm seeing a conflict within a conflict here.