She knew something was wrong, and strange, and unnatural, and she couldn’t figure out how she was doing it all. The strange monster kept following her, and saying things she couldn’t understand, and wanting things she didn’t know. And this entire time, she held her breath in the consuming water, and beat against the doors.
Then she stopped, and thought, and the doors slid open with a single touch, door after door slipping open without a sound, and whispering shut behind her, each time a little of her breath slipping away until she reached the final room, the monster on her heels, and while turning to face it, found herself breathing easily.
On waking, she knew the secrets of dreaming. It is unnatural, unreal, and yet everything flowed beautifully together. To breathe underwater, you must not think of it, cannot subject it to reality and logic. It simply is, and you must trust that while it works, you do not know why.
To dream and to live the dream is to breathe underwater, and fly without wings, and sing without a voice.