ISLAND OF THE GODS

The results of a random search for "island gods" led me to this:

Dol hareubangs, also called tol harubangs, hareubangs, harubangs, are large mushroom-like statues found on Jeju Island (called "The Island of the Gods") off the southern tip of Korea. They are considered to be gods offering both protection and fertility and were placed outside of gates for protection against demons travelling between realities.

It may be the simple explanation for the Island. We have seen clues that match this description: Tawaret, a goddess of protection and fertility once stood guard on the Island shore. We have seen in the frozen donkey wheel cavern the words about opening side (Earth) gates for the eternities. The hatch alarm signaled the release of a gate by one who escapes a place of death.

We are getting closer to the final "reveal," the mystery of mysteries: what is the Island?
Possible answer: the nexus point of the gates where demons travel between realities (island world and the sideways world).