Abyss of Reincarnation.
The World Tree is of extraordinary significance to Jidao. Handing it over to a disciple as a gift was naturally a facade; the World Tree had never changed hands. The moment Jiuge attempted to swallow it, Jidao could use it to launch a counterattack.
The Origin-Gathering Space can be understood as the conscious domain of the World Tree. For the longest time, Jiuge failed to successfully claim ownership of it because he could not force his way in here. He did not even know that time was the master key, and Jidao's early extraction of the power of time served several purposes.
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