The full scope of existence is made up of many forces: order and chaos, annihilation and preservation, and yet others untold. In their pure forms, they fill creation. By comparison, the spaces between them - the boiling interfaces where their influences clash and mix - are both tiny and temporary, composed of bubbles of spacetime. They all have different sizes and different compositions; some are different from each other only in some obscure fashion, while others are so dissimilar as to be unrecognizable. And, as bubbles do, they constantly form, last for a while, and then, so to speak, they pop.

This is the Froth, and within it lies all that mortals were meant to know - every world, star, galaxy, and universe.

Generally speaking, mortals cannot see the Froth from outside, which is just as well; for most, an understanding of the Froth would only disturb them. Regardless, some have managed to deduce its existence and nature from observation. Those in the best position to do this are those who have managed to travel between universes without ending up in one that will kill them, and while there are a number of ways to do this, the only one available to the takmar of avishraa is glyphic teleportation.

To their good fortune, their method of approaching this tends to bias their traveling toward destinations with relatively friendly laws of physics. While the only known methods of traversing the Froth at greater than a cosmic crawl tend to make observation of the actual journey quite impossible, it is possible to reach destinations whose fundamental laws are extremely different from those of a traveler's point of origin. And although successfully reaching a destination that differs too much will be fatal - for example, if the atoms making up your body are suddenly free to fly apart in a billion different directions - a select few travelers have seen evidence sufficient to make clear that other places in the Froth need not always work the same way.