It is unclear wether it’s the Thursar from The Void or the Astral pair of Boriac and Vornir being the older of the lot. But they are the shapers and tenders of all things existing, whereas Gods are the younger more whimsical lot of them all.
Where the others seemingly work on a strategic level the Gods act in tactical or more operational level, be that, their own agenda to position them better among the myriad of their kind. Some Boriac have hinted that Gods are manifestations of praise and thoughts, from our World leaking into the Astral and touching raw unbound swirling energies of equally aligned Aura Colour.
The Gods live in a very strict hierarchy of 8 colours, with 1 major, 1 contender and numerous lesser in each . Both Boriac and Vornir follow the same system, with 1 major and several lesser within the 8 colours. And the Thursar are also grouped yet they have no leaders, contenders or lesser -they merely exist.