Before the creation of worlds and universes, there is only the Fabric that constantly folds in and out across itself in a completely random way. It is where the Fabric comes into contact with itself that basic matter forms and subsequently gives rise to the formation of the various universes and worlds. Along the same logic, regions on the Fabric where it is unfolding are where whole worlds and even universes will be snuffed out. Thus, the only constant besides the Fabric is time, an element common to all worlds and universes.
Time is governed by the One, the Ultimate, the Observer, the Keeper of the Hourglass. He stands and watches. He watches the Fabric folding and unfolding, watches worlds and universe being born, watches the same worlds and universes coming to an end. He forewarns of the Unfolding, announcing the Ultimate Countdown in the form of burning letters that chase themselves across the sky miles above all lifeforms.
This idea came to me because of Freetext Friday and this is as far as I can take it. I imagine this would be the background myth to a setting where humans (or any other type of intelligent beings would do) are forced to migrate every once in a while (I imagine the time would be at least thousands of years) across worlds or even universes becasuse of the Fabric unfolding.