According to the Bright Way, there is a symmetry between epistemology and cosmology. The realm of the Known is the set of all things that are known. This epistemological concept corresponds to the noosphere (AKA the mind sea), which is the sum total of a sapient species' thoughts, experiences, ideas, and communications, as well as their effect on the world.

The Realm of the Knowable corresponds to the physical universe. Things and events in this realm can (at least theoretically) be grasped by mortal minds, though certain things may be beyond the ken of a particular species on account of its neurology and sensory system, in the same way you probably couldn't explain nuclear physics to a chimp. The Bright Way seeks out other sophonts in part to fill hitherto unnoticed gaps in the yinrih's knowledge, and for the yinrih to offer the same in kind.

However, there are things that lay outside the Realm of the Knowable, beyond the grasp of any mortal mind, regardless of how it is organized. This is the Realm of the Unknowable, or the Empyrean. This is where the souls of the blessed dwell in the beatific vision of the Uncreated Light. Faith, to trust in the unseen, bridges the Realm of the Knowable and the Realm of the Unknowable. Heaven is thus conceived of as being "outside" and the physical universe as "inside".

Wayfarers refer to the Empyrean as cBqDFp the Great Outside, and to the physical universe as rjGJfdMr sMlr This dear little Creation.

Here is what First Contact looks like from an epistemological perspective, the noospheres of humanity and vulpithecinity uniting as one.

What precisely this union consists in is a matter of debate in Claravian circles. It could be as simple as forming friendships between individuals of either species, or it could be as concrete and straightforward as physically uniting the two species' respective Internets, as is held by the Farspeakers.

Since I don't want to double post, here's a bonus lore dump:

The stargazer's prayer is a simple prayer taught to pups. It is, as you probably guess, said at night while gazing up into the stars. Below is an English translation.

I see the stars in dark of night
shining down with holy light.

keeping sophonts safe and warm
whatever be their shape and form.

When their eyes look to the sky
Do they see my star and I?

Do they chant this little verse,
O Maker of the universe?

One day soon before too long,
may we hear their joyful song.

May all our minds and all our might
reflect the Uncreated Light.