This was Tau Empire territory.
It was also the territory of her, the goddess Aun'Va.
The meaning of her existence was to ensure that the Greater Good existed throughout the universe and flourished.
After all, she was bound to the Greater Good.
They prospered together and suffered together.
Just as humanity had bound itself to The Emperor.
If The Emperor rose and became the Destroyer Black King of the Warp,
then humanity would be utterly destroyed as well.
If the Tau, the spreaders of the Greater Good, vanished, then she too would vanish from the Warp.
Likewise, the Chaos Gods had bound the corresponding emotions to their domains of authority. It was simply that their domains covered a far broader scope.
Everything the goddess Aun'Va did was for the sake of her own survival.
On that foundation, she sought opportunities for growth through various schemes, gradually becoming a Chaos God like Slaanesh, Tzeentch, or Khorne.
Only—
her thinking had been far too simplistic.
She had believed she could gain some benefits from dealings with certain Chaos Gods, or preserve everything she possessed.
But when the dimensional gestation appeared,
she realized she had been deceived.
The other party had honored the Chaos oath and had not torn the border of the Great Rift beyond the First Sphere.
But—
they also had not merely torn open the barrier between the Warp and the material universe as she had imagined.
They had exploited a loophole.
They had never said dimensional gestation could not be carried out within this material universe.
During this period,
she had become nothing more than their hired labor.
She had also done everything in her power to bring about the war between the Imperium of Man and the Tau.
In order to reach the threshold needed to tear open