Celestia's hospital room was inconceivably peaceful, the sterile whiteness given an air of life from the warm sunlight and gentle breeze streaming in through an open window beside the bed. Celestia herself seemed to be in a deep and pleasant sleep, however, the amount of drips attached to her body could suggest otherwise. A nurse, the only other pony in the room, sat observing from a chair next to the door, occasionally making notes on a clipboard clutched in her hooves. However peaceful the room was, inside the princesses head, it was a different story.
Standing inside a realm of blinding whiteness, Celestia screamed with all her voice, hurling obscenities at nopony in particular. Suddenly, from behind her, there came a sinister chuckling. Stunned into silence, Celestia turned to find a shadowy figure without a consistent form, from where it had come, she did not know. For the last several hours she had been raging in this featureless place alone, and this figure had not approached from anywhere, she was sure of that. One moment she was alone, and now she wasn't, it was as simple as that. And that fact scared her.
"Who are you?!" She demanded, "Where have you come from?!"
The figure ignored her questions and just continued to laugh manically.
"Do you know who I am?!" There was a threatening tint to Celestia's voice.
"do you know who I am?" The figure mimicked mockingly
Celestia's eyes went wide, and her mouth turned into a snarl, she entered a braced stance and lowered her head, presenting her horn to the shadowy intruder. "You dare mock me?!"
"You dare mock me?" the figure mimicked again.
Celestia snarled, and soon her horn began to glow, a sphere of energy collecting at its tip.
"I wouldn't do that if I was you." The figure warned.
"And why should I not?" She barked in retort.
The figured sighed, "You really are a stupid Alicorn aren't you? Where do you think you are?"
Celestia's resolve faltered for a second, her magic flickering briefly before solidifying again. "I'm not sure, but you seem to be rather full of yourself, so why not enlighten me?"
The figure appeared to face palm before snorting in contempt. "Are you really that blind? Use your brain, where were you and what were you doing before you got here."
The princess screwed her eyes, "I... I was being tended to by the medics. I had just fallen from my balcony."
"Exactly, so where do you think you are?"
"My head!" Celestia exclaimed, almost jumping and quickly losing control of her magic.
"Give the girl a medal! Seriously, for being princess of the sun, you're not that illuminated on the facts!"
"Wait a second," the princess held up a hoof. "If we're in my head, who, or should I say what, are you?"
The figure moved in front of her, its form starting to solidify. "I guess you could call me your spirit guide, or mentor if you wish. It doesn't really matter what I am, it only matters that I'm here in the first place. Clearly somewhere in that ancient, clogged up brain of yours, you think you need me, and here I am."
"So why do I need you?"
"No idea, but we have until you wake up to find out, so I can imagine with that fall we have a while. But before we start, can I say something?"
"What?" Asked Celestia unenthusiastically.
"Give me a form already."
"Huh? it's not my fault that you're a shadowy figure."
"Of course it is, this is your head after all."
Celestia rolled her eyes, "Sorry Mum!" She said sarcastically. A second later she got the shock of her life as suddenly the shadowy figure shifted and solidified, taking form.
The figure looked down at her new form and then at the princess's face, the sheer horror portrayed in the rulers face gave caused a smile to cross her face. "Looks like this is going to be fun."