Using my fire to help guide others at night.: Contemplating my "gift"

It's been about a week since I learned I could control fire, and as it is incredibly bright, I have been assigned to serve as a replacement while the lighthouse gets rebuilt. As I was sitting on the edge of the cliff top, waiting for the sky to darken, I hear someone running up behind me. Looking over my shoulder, I see my little sister carrying a now cold bowl of stew my father loves making.

"Thank you," I tell her gently, rubbing the top of her head as I hold the bowl she gave me in my other hand "you know you didn't have to do this, right?"

In response, she just nodded and sat down next to me. As I heated the stew up, I noticed that she was writing something in the dirt. 

They say I should stay away from you, that you are going to hurt me. Are you?

"I would never even dream of it," I say, a little insulted by how everyone now thinks of me "that I swear on my life."

She then relaxed and leaned against me while I ate and once I finished, we sat there and watched the birds fly overhead. We did that for a good amount of time and when I noticed that the wind had started to pick up, I turned to her and handed her the bowl she brought me the stew in.

"The storm's coming in," I explain "you should head back to the others and tell dad that he's still making the stew well."

With that she nodded and took the bowl from me and started to run back the way she came. Just before she went out of sight, she sent me a worried look and I gave her a reassuring smile. Once she had left my view, I cupped my hands and willed th flames I can control into existence.