Dreams, the life of the subconscious.
I dreamed of winning a fiver on the lottery and found a penny.
I dreamed of swimming in the olympics and fell in the canal the next day.
I dreamed of being Brad Pitt and woke with the worst pillow crease mark on the side of my face (which lasted nearly all day).
I dreamed I reversed all my previous dreams and indeed won a fiver on the lottery and had a great swim session(albeit not to olympic standard) later that week.
As for transforming into Brad Pitt, I dreamed that Brad was dreaming about waking up and being me.