"The room isn't a cube, you're just looking inside."
The cube continued, "So, if you go inside, you'll see your house. Inside, you'll see your bedroom, your living room, your bathroom, and of course your kitchen. You'll also notice that you have your own private bathroom that you can access from the room you're in. All you have to do is step onto the mat that's placed in front of you. It's really quite simple to use."
The cube continued. "If you're able to keep your eyes open, you will be able to see your surroundings. Just keep an eye out for any other people, and remember that there are only a few people who will be visiting this particular room. You'll need to work hard, as this isn't just about studying.