The Golden Swordsman Myura leads Taichi and Rin to the mage, Lemiya. After a reevaluation they discover that both of them possess astounding magic power, and so they begin to train under Lemiya's tutelage. During their training Rin begins to get a feel for how to cast magic. On the other hand, Taichi faces difficulty using his magic power, but just as he's about to give up on mastering his task in one day he hears a mysterious voice.
yet you have practically 
no idea how to use it.
.لكنّكما لا تعلمان كيف تستخدمانها عمليًّا
Aber ihr habt keine Ahnung,
wie ihr sie nutzen könnt.
pero no tienen idea de cómo usarlo.
pero no tenéis ni idea de cómo usarlo.
ma non avete idea di come usarlo.
mas não têm ideia alguma de como usá-lo.
а вы о ней и понятия не имеете.