The celestial realms as known today are said to have only existed since the early days of the Pantheons of Isekai
, but it is believed that the realms themselves may predate the gods. Evidence of primitive gates within the pocket dimension of the Southern Library
among the Sphinxes
question the true origin of the celestial realms but it is a conundrum that few discuss as it has been waved away by the gods.
As the Pantheons of Isekai
became solidified, each of the gods chose a realm to create their home. Over centuries, changes were made to perfect each realm to fit the personality and whims of the god residing in it. Once fully settled within their realms, some of the gods chose to step out and create the Divine Races
and eventually the Elder Races
Until the creation of the Southern Library
and the era of exploration of the Sphinxes
, only the gods could travel between this world and their own realms. With the Southern Library
came the establishment of individual gateways that would allow anyone to walk between the worlds and entertain an audience with one of the gods. This was most frequent in the era of the Divine Races
, all manner of folks speaking to the gods as they made their places in the world, but this would change when the Elder Races
came to the world.
Once the Elder Races
came to Isekai, the Southern Library
was sealed away from most, and thus the gateways to the gods were hidden. Few still traveled between Isekai and the celestial realms, but only if the gods and the Sphinxes
allowed them to enter. During this time, other gateways to the celestial realms tended to appear as certain gods chose to create dedicated gateways for their followers. Gods such as Kallex
created gateways in the highest peaks and deepest oceans, places where only the Dragons
and the sea dwellers could reach them. While these gateways were rare, some of them still appear from time to time even though the Southern Library
is not as sealed as it once was.