I distinctly remember the Listeners trying to attract creationspren in order to change into artform. While the Cryptics are the spren that make Lightweavers. Now maybe the Listeners had the wrong idea trying to use creationspen in the firstplace, who know? But It seems to me that artfom and Lightweaving aren't corresponding forms. But it does help with the idea that listeners need two spren in order to become KR. One for the correct form and another for the Nahel bond.