The final Lower Corpse was restless instinct: sloth, the urge to reproduce, and the desire to cling to life.
Compared to the Upper and Middle Corpses, the Lower Corpse was far more closely tied to the physical body. It seemed easier to subdue, yet severing it was no easier than severing the other two.
"The crucial point is that the Three Corpses are intangible and elusive. There is no clear standard for determining whether one has truly severed them."
Sometimes, cultivators believed they had severed the Three Corpses, when in reality, they simply had not encountered a tribulation capable of truly stirring them.
Adam closed his eyes in thought. If that was the issue, then the Three Demons Sect's cultivation method from Under One Person could display the Three Corpses quite directly.
But setting aside the question of where the world of Under One Person even was—
With his current cultivation, could the Three Demons Sect's method truly draw out his Three Corpses?
Mechanisms were mechanisms, and power levels were power levels. Unless one's status reached a certain height, the gap between quantitative and qualitative change was not so easily crossed.
In theory, Ground-types were immune to Electric-type damage. But if he went to the Pokémon world and struck Groudon with lightning now, if he said he wanted it seven-tenths cooked, it definitely would not end up merely six-tenths cooked.
"Should I cultivate the Three Demons Sect's method myself? Or derive something on my own based on its effects?"
Adam had studied the demonic path to some extent, especially heavenly demons. If he put in some effort, perhaps he could expand in the direction of Corpse Demons.
As for giving up... that was actually an option too.
The Path of Immortality was merely one component of Adam's path. Minor flaws