"She was swaddled in mercy, yet suckled upon Chaos by a name unuttered.
Her heart still croons soft benedictions to the waking world,
even as her flesh labors with innumerable things that have never known form nor mercy.

When the shadow of the Black Goat drowns the constellations,
gentleness reveals itself as the most ancient curse,
and the one from which no mind may flee unshattered.

She is the maternal Chaos that conceives the End through pity,
the cradle wherein ten thousand offspring stir and dream,

and tenderness itself yawns open as the abyss."

She was once just the ordinary Fluttershy. However, during one visit to the Realm of Chaos, Discord brought back a Chaos Seed and, as a joke, planted it in Fluttershy, letting her briefly experience what it felt like to be a being of chaos as a tea party “exchange gift.” What Discord did not know was that this Chaos Seed came from another universe — deliberately left behind by the Lovecraftian harbinger of chaos, Nyarlathotep, as part of His grand design.

After the seed was implanted, Fluttershy briefly felt a sensation similar to that of Discord’s kind of chaotic existence and found it amusing. With a snap of Discord’s fingers, everything seemed to return to normal. Yet Discord did not realize that the seed had already taken deep root in Fluttershy’s heart.

Gradually, Fluttershy began to change. Her eyes altered, her mane slowly took on an eerie purple hue, her wings vanished and were replaced by writhing tentacles. When her sisters told her about these changes, Fluttershy felt nothing was wrong at all — everything was “normal” to her. Twilight and the others panicked. Discord panicked. No matter how he snapped his fingers, Fluttershy completely ignored his chaos magic.

By the time she was nearly halfway transformed, Twilight and her friends attempted to restore her using the Elements of Harmony, but all attempts failed. Fluttershy could not understand why her sisters were doing these “things.” She had not changed at all. She was perfectly “normal.” Why was Discord so frightened? She was fine — or rather, she had never felt better. So good, in fact, that she could nurture countless offspring.

In the end, Twilight and the others had no choice but to use their strongest magic to seal Fluttershy within a designated region. Fluttershy herself had no desire to step beyond the seal. She was content to live quietly within that area, as long as her sisters would still come to drink tea with her.

Thus, Fluttershy became the Daughter of the Black Goat, the Mother of Fertility, the Mother of Ten Thousand Offspring — and Discord, along with the others, could no longer bring her back.