The Beginning of All

Before the Mane Six, the Royal Sisters, and in fact, all sentient life, began, there were the 6 Universes. Each one made completely out of a specific element: Earth, Water, Storm, Fire, Light, and Magic. The 6 Universes had no shape, no beginning, and no end. They simply existed, always have, and always will. They did not expand, for each occupied the same space, and filled all of existence at the same time, permanently separated by dimensional planes.

Now, there are things that crossed between the Universes, or else this story wouldn't go anywhere. They are beings of condensed, pure emotion, not the actual emotion, but more like a physical manifestation of it. The actual emotion is more like an ethereal force that flows through everything. Each stood for a specific emotion or thought: anger, love, joy, confusion, pride, shame, etc... These are without beginning like unto the Universes, and are either black or white, depending on if the emotion was positive or negative, chaos or order. For future reference, these are called Paragon, a physical embodiment of a single emotion. The Paragon were naturally about the size of a pony, with similar body structure. Although they could change their body into any shape, and grew in size and intensity when they absorbed magic. They are not limited by the dimensional planes or distance, and traveled between the Universes, attracted to other emotions based on their own. But, they aren't sentient as you and I think of them. Yes, they feel emotions, but lack thought and act mostly on impulse. And when the Paragon shift between dimensional planes, it makes a temporary hole where one Universe spills over onto the other.

The Universe of Earth is definitely something to behold, an endless, single mass of all types of rocks and soil.  The Universe of Storm was still separate, so no other Universe had a sky, or air for that matter. The Universe of Earth was mostly solid, except for air-empty fields of gravity created by different densities in the earth in which other masses were trapped. But this effect was true for all perspectives, for super-cluster-sized planets, to just orbiting crumbs of dirt. To put it into our terms, it would be like the most complex block of Swiss cheese you've ever seen, that also happened to fill a Universe by itself. There are mountains, canyons, caves, dunes, and clouds of earth without number. But there was no plant life, since the Universe of Water was also separate.

The Universes of Storm and Magic would be next if you were rating them by complexity and interest. Although, it is a huge step down from the Universe of Earth. The Universe of Storm would be called the Universe of Air in it's most basic state, a blank, endless expanse. At one point, a Paragon must have shifted from Water to Air, creating clouds and giving the grey void some variety. So now, the Universe of Storm is  filled with different clouds and pressures of gas, with brilliant flashes of lightning and powerful storms. The Universe of Magic is a black void filled with pinpoints of light. We would think of it as "space". However, the infinite number of lights aren't stars, but massive orbs of magic in a plasma-like state. The stars of magic each flared with a different color, and together made constellations.

The rest of the Universes are solid, elemental globs; not much to look at. But of course, the occasional shift between dimensional planes combined the elements and made something new. So there are always irregularities in the boundless, incomprehensibly large places, Places Without Time.