Are you Dreaming?
Hermione brought one of my favorite films, Waking Life, to her Theory of Knowledge class. It was a big hit. The movie poses an Eastern Philosophical question: is there really a difference between dreaming and waking life? Because essentially, our thoughts create reality. Everything that exists in time and space was first a thought in someone's mind.
Lucid dreaming is central to the plot as well, something that I did for years and still do occasionally. To dream lucid is to be aware inside the dream that you are dreaming. Then, all sorts of interesting things can happen--namely, whatever you want.
Want to fly? Explore another planet? Have superpower vision? You name it, you do it.
Hermione tells me since her class has seen the film, not a day goes by without someone saying, "I wish I was lucid dreaming right now. Oh, wait. Maybe I am."
Keep dreaming, kid.