What did 'Linchpin of the Multiverse' mean?
To put it simply, the Conjunction of Space served as a convergence point for different dimensions and realities, much like how various seas around the globe meet at a common point.
Supposedly, millions of years ago, the creator of the Chamber of Exaltation, a Deity of unknown identity, managed to capture and relocate one such linchpin or fragments of the multiverse on Vantrea, constructing a separate realm within to hold the conjunction.
Even Kahn was now curious about the creator's identity, wondering whether they employed the First Walkers to build the separate realms within the Chamber of Exaltation, such as the Convergence of Reality, Hall of Sentience, and Conjunction of Space, or if the creator itself was one of the First Walkers before becoming a deity.