As you see the door opens, while you well aware that the spell you just cast is from the Harry Potter story, you begin to realize that you might be dreaming... You preform the first reality check that comes to your mined and block your nostrils while trying to breath... Its works!! Your breathing through your blocked nose confirming yourself your inside a dream... what will you do?
Think of how well Margot Robbie is doing..
Yells and become super saiyan
Flys to the moon
Spin like a Whirling Dervish