He could tell that just now, the Serpent of the Garden's main will had left its husk.
This did not mean it had lost the ability to resist or became insensible to the outside world; it was merely akin to a 'sleep' state.
Most of the demon species currently in the Abyss originated from the dissolution of the first-generation Demon Gods, with few being successors ascending later and carving out their own domains, and the Snake Demon belonged to the latter.
Although it was unclear which shattered origin of an alien Deity in the form of a 'snake' the Snake Demon initially came from, or perhaps it was directly related to another Serpent of the Garden from the Nine Realms—Yemenggade.
In any case, these demons were indeed well-adapted to the environment of Tartarus; like Flame Demons, they took root all around the chaotic Abyss.
Therefore, as a high-blooded 'Eight-Armed Snake Demon' within the Snake Demons, it temporarily created a segmentation to bypass the Abyss Will's exclusion.