As you recover from the explosion you caused, you notice Faliel is looking like a teacher whose student has messed up. But you made such a big light..

"Is something wrong? That was so much bigger than the one you made. "

"Which is the problem. You men are always thinking that bigger is better. Now you aren't always wrong.. [You can only guess how accidental her touching her massive breast is.]..but it's not true with magic.
"Magic is about focus of your power, not the sheer force of it. You only have so much power and if you make a wild display like you did, you only exhaust yourself.
"Indeed, you do worse. You see how that explosion blasted you back far more than it did me. And you are still too weak to do much. If you had been using that spell to make a meal of me, you can see how easily I could turn the tables on you.
"Now you do show you have the basic ability, and if you train and practice a lot, I can't say how powerful you will become. But you will need to work hard on the lessons I give you."

"I bet I could be a lot more dedicated if I got a reward after each successful lesson. Positive re-enforcement can work wonders."

"Yes, that would be a very good idea. What sort of reward do you think would work best?"

"You."

That sets Faliel back.