[For all of his skills and natural instincts with regards to the subtle art of manipulation, for Hylia at least it's impossible to disregard the seething darkness that makes up much of Sephiroth's heart. Darker than even the pitch black of his crystal now, it's so complete that it would lead one to wonder on whether or not he's simply always existed in such a way.

The Sephiroth that Zelda knows might well have never existed. He continues to watch Hylia carefully. Their game of carefully placed words continuing.]

So long as we all play our parts, this grand plan is the best shot that we're going to get to rid the World of it's troubles.