"...what is the difference between dreaming and dying?"

Well that's a question that Kit doesn't particularly want to know the answer to, given the Dreaming itself brought him to Konryu at the moment of his death in Thedas. Maybe the answer for him is, there isn't a difference. He shifts uncomfortably the more he thinks about it, but the appearance of that strange obsidian stone pushes all other thoughts to the fringes. Dealing with this is what matters now.

Then Rutile asks him that question.

He glances up, his eyebrows arching high towards his hairline, then gives the stone a shifty, uncertain look. "All right," he begins slowly, hesitates, then reaches out to carefully collect it up into his grasp. This time he doesn't drop it when he feels that strange rush of sensation, or the hum that resonates low in his ears. "...you can't hear that?" he asks Rutile, glancing their way.