Sometimes I think I'm alone in the world as being the only person who has read that series! I think it's marvelous and superior to Tolkien's Lord of the Rings, which is obviously the foundation of so much fantasy these days. I'm actually still on the last book, nearing the end. I was able to get a free audio copy. That reminds me, I really need to finish it.It's a good job that I've read the Wheel of Time series, so I understand where you're coming from. (I'll be opening portals next - sorry couldn't resist).
If you haven't read it already, do check out The Thee Waves of Volunteers & The New Earth by Dolores Cannon. That's the best book I have come across so far on volunteer souls.they had to tell me about themselves