On my second reading of Runes, this passage jumped out at me. I think I see an important clue here (and not the one that this passage speaks directly about). Does anyone else see it?Damn it, she could not remember. But she seemed to recall that he had vacillated between varying manifestations of his insanity, shedding glimpses of Despite and woe. And where they walked had been primarily a kind of scrub-grass, hardy and thin, interspersed with patches of bare dirt and sections of fallen stone.
He had been standing on grass of that same kind when Lord Foul had guided her to hurtloam. And earlier, when the Despiser had first spoken to her through Anele: the same grass.
Dear God, was it possible?
He has no friend but stone.
Did the surface on which he stood determine the phase of his madness? Or did that surface control which of several beings or spirits could locate and possess him?
Thomas Covenant had spoken to her through Anele twice, on the lush grass of the Verge of Wandering: grass so rich and high that she had been unable to walk through it without floundering; the same grass which had stained her pants with a script which she did not know how to interpret.
I don't want to say what it is I am noticing because I want to see if someone else does, too.