Panic crept on Merrion's senses the instant that the world went dark, but he remembered first the word's of his instructors from years ago and then remembered that this was Gale, and that she was helping him, and that he knew she was going to do something like this. In truth, it was perhaps the most innocuous thing she could have inflicted him with, which was all good for practice, and he wasn't going to die from a blind spell, not if nothing else was attacking him.
He took in a deep breath. Right. Esuna. He needed to still his heart; white magic never seemed to work with adrenaline the way that black magic did, not for him. Another deep breath. He whispered the incantation, gripping his staff and trying to find the light flow.
And -- ah, there it was. It was familiar, and it wasn't the destructive force of black magic or the ease of synergist magic or the effects of time. This was white magic, and this was the right spell. It had to be. And so he cast it over himself. He felt better, but he still couldn't see.
Okay, it was time for another deep breath and another bout of concentration. You can do this, he assured himself. He tried to cast the spell again, and this time... this time he felt a little bit of what Gale had demonstrated for him before, but his vision still didn't return.