If being an elju has something to do with being the recipient of dreams (mandati as seswatha's elju) is someone making an elju out of Kellhus?
Before this thread, I had assumed that elju's were a sort of simple thing--after the nonmen were cursed with living forever, they would eventually break down, become erratic. At this point an erratic might acquire a book to be there in case he remembered something, the book functioning as salvager of whatever pops up. Plus the book gives you a daily does of pain (kosoter using the chorae on cleric) to help you hold your shit together. Bonus, keep the elju long enough and it starts to become important to you. Kill it and experience a brief ecstacy or remembering!
But there's got to be more, it's Earwa, not Earth.