The Inward Sundering

Overview

In the cosmic implosion called The Inward Sundering, the overstrained proto-anchor sphere breaks, its most extreme conditions tear away as separate planes, and a balanced core is left behind.

Here the long strain of the late Great Polarization meets the last push of the Unformed, and one straining whole breaks into the separate planes from which all later reality grows.

The Overstrained Sphere

By the late Great Polarization, the proto-anchor field no longer holds together as a steady sphere of gentle shadings.

Elemental and abstract Harmonics have sharpened it for spans beyond counting. Absence and excess, order and dissolution, revelation and concealment, perfect stillness and open becoming all grow fiercer within one unbroken but ever more unliveable whole. The sphere is still joined, and that joining has become its doom. Too many incompatible things are forced to share one failing world.

The Sundering is not the murder of a healthy cosmos. It is the breaking of a cosmos already strained past bearing.

The Final Unformed Pressure

The Unformed do not cause the crisis, but they give the last push that makes collapse certain.

At the height of the late polarization they press hardest towards the unmaking of all definition. In a field already overburdened with warring extremes, that push towards the undone is catastrophic. The sphere cannot take one more blow and still remain one world.

That is why the Sundering is told as it is. It is no blind collapse. It is the hour when the strain within and the assault from without met at exactly the wrong moment.

Separation and Residual Core

When the Sundering comes, the proto-anchor field does not burst outward into neat fragments. The shared world fails inward.

The most extreme conditions tear away as separate deficit and surplus planes, while a balanced core remains at the centre. That core is not yet the Material Plane, but it is the reason a balanced world of matter can exist at all. In the same convulsion, the force the breaking sets loose helps the Primes hurl the Unformed back far enough for reality to endure, changed.

The new planes do not all settle at the same pace, and the core settles slower still. So the Sundering is not only one moment of violent parting, but the start of very different aftermaths: swift settling at some extremes, slow mending elsewhere, and the long balancing that ends at last in The First Equilibrium.

Historical Significance

The Inward Sundering is the great breaking on which the whole later shape of reality rests.

It is why the planes of the extremes stand apart instead of blending into one field, why the Material Plane had to be won instead of simply being there, and why the cosmos still bears scars, favoured channels, and old unsteadiness rather than perfect evenness. Some of those scars help explain why ley lines run where they run. Reality here survived by being remade, not by being kept.

The Sundering joins the first age of Primes and Harmonics to all later history of matter. Without it there are no separate planes, no long settlement of the balanced core, and no world in which planets such as Caeldon can rise.