Now the antiXeelee turned to its last task. Seed pods, spinning cubes as large as worlds, were scattered everywhere in an orderly array, millions of them dispersed over the unraveling curve of space. The antiXeelee ran metaphorical fingers over each of the pods and over what lay within: beings with closed eyes, ships with folded wings, refined reflections of the antiXeelee itself.
The work was good. And now it was ready.
...There was a discontinuity. All over the Universe the pods vanished like soap bubbles.
The seed pods' long journey back through time had begun. They would emerge a mere hundred thousand years after the singularity itself, at the moment when the temperature of the cosmos had cooled sufficiently for matter and radiation to become decoupled — so that the infant Universe became suddenly transparent, as if with a clash of cymbals.
Then the creatures within would unfold their limbs, and the long Project of the Xeelee would begin.
-Vacuum Diagrams, "Secret History"