Double

"You need some help?" Ning asked. 

"No," he said. "I need to learn to do this by myself. Once you leave, senior, I will need to take care of my sister and myself. So, I need to learn how to do this now." 

He kept on striking the stones and did manage to create some sparks, but nothing substantial enough to light a fire. 

"You really don't need my help?" Ning asked again. 

"I— I probably do, but I also want to do it myself," Famir said. 

Ning thought for a moment and said, "Why don't you do this? Just think of the fire burning, and then try it. Just imagine a fire in your head and think of it appearing in front of you."

Famir squinted his eyes and looked at Ning. "You want me to use Aether?" he asked.

"I-I don't know what you mean," Ning looked to the side and started whistling while continuously looking towards Famir from time to time.