Is the ceiling a painting or the sky?

Asuka kept looking at the ceiling as she thought on how her day would go. The classes she was going to have. Heck simply how the year was almost over. Not only that but she had to think on answering humanities greatest questions, like why was hogwarts ceiling the sky. Was it a projection of the sky outside? Or something like the paintings around the castle. "No, no. I truly believe the ceiling has a mind of it's own. She smiled, holding her hands on the back of her head. Contemplating what that actually meant. "And if it actually does have a mind of it's own. Does the ceiling have likes and dislikes. Like... if someone drops food from their plate and doesn't pick it up... does it get sad?"

As if to proof her theory Asuka picked up a piece of bread from her plate and dropped it unto the floor, immediately looking up at the ceiling. A bit disappointed that it didn't have any change at all. "Okay, that's a no." She held her chin in a thoughtful expression. "Maybe a show of emotion? But I've seen people yell, cry or be happy here all the time with minor change." She pondered "Maybe a mass explosion of emotion? With that she rummaged in her robes pockets, talking out a medium sized rubber ball and tilting her head as if pondering what to do with it.