Arcane!
Originally, it was only pursued by [Arcanists] as an alias for truth, an abstract notion.
However, from an unknown generation in the Inner Circle, it began to undergo strange changes.
Perhaps it was a sudden whimsy of an [Arcanist], or perhaps the force of nature that absorbed many thoughts and beliefs, the "Arcane" one day materialized.
It became a chaotic spiritual consciousness, discovered by the [Arcanists].
The subsequent research thrilled everyone in the Inner Circle.
Although the "Arcane" did not possess wisdom, its abilities were very powerful, with its computation and deduction abilities becoming a terrifying "brain".
However, its status was too high, and none of the [Arcanists] could utilize it directly.
Therefore, the [Arcanists] built the White Tower, used "Arcane" as the master control, and developed abilities such as witness contracts, intelligent management, and even Mystic Locks.