f a e r i e g l a s s ~~~ The ghosts of words are faerie glass, Haunt-riddled without and within Their shine comes from that which has passed And that which might have been. The ghosts of words will whisper soft Of shattered glass and dreams. Their bite comes from that which we've lost And things we cannot see. The ghosts of words, like windowpanes May show us what's inside: Their power comes from poet's pain, In written words it hides. The ghosts of words are Faerie glass, Hope-riddled, without and within On pain and joy, light they can cast, They haunt the mortal men.
So the faerie glass is actually a reference to a substance in IoR. Faerieglass is actually their term for when a pond freezes over slightly Specifically this one pond in Errilyia that actually used to be an old gem mine. When it freezes over the ice is weirdly shiny in different hues in the light, especially early in the morning