Board Thread:Lore Discussion/@comment-10407900-20140914234758/@comment-5632187-20140915021528

You don't offer your soul when you Link the Flame, you offer your Humanity. Two very different things.

The best theory I've seen about the curse and curing it is that there are 3 parts of the Soul. There's a dark portion, a light portion, and an in-between portion. If you can acheive this in-between state that will allow for Undeath to no longer happen. For proof, take a look at a Giant Soul. It is a combination of dark and light, and obviously the Everlasting Dragons and the Giants have something in common as a Giant Soul can be used to form a dragon as evidenced by the Ancient Dragon.