I said it earlier in another thread, but the binds could be metaphorical. Either in the responsibility sense (eg, she is bound to Hydaelyn more literally than before, able to hear and spread her will as priestess, similar to how Elidibus is Zodiark's Emissary) or in a sense that she feels a lot of pressure by Hydaelyn, the responsibility being binding and uncomfortable. After all, Hydaelyn did ask her to do something for the sake of 'hope.'
