Board Thread:The Last Sovereign Discussion/@comment-25941257-20170825174215/@comment-32166397-20170918174229

People's souls literally evaporate/disappear without their bodies to sustain their magical cycles. I also think Simon said the wraith that killed Wendis shredded her soul alongside her body. I'm pretty sure the souls in Zirantia were bound there so long because their Incubus King trapped them there while they were still alive.