"Humans are not only external objects, but very special external objects..."
"To travel from the Abyss Fourth Layer to the Abyss Fifth Layer, one must undergo a process called anchoring. It is the procedure of turning something external to the Abyss into something internal. Only after being anchored does one qualify to pass through the passage between the fourth and fifth layers."
"This passage is called the Abyssal Hole. Like a funnel, it filters out what the Abyss truly needs. Things that have not been anchored are excluded by the Abyssal Hole and cannot enter the lower levels of the Abyss."
"What makes humans special is that your anchoring process is more complicated than that of other things. You must continuously participate in Abyss events and make yourselves part of the Abyss's development, taking on certain roles as this mass of Cancer Cells 'proliferates,' before it will treat external objects like you as one of its own."
"Compared with other external objects, which the Abyss may regard as 'food falling into its mouth,' humans are regarded as 'foreign objects invading its mouth.' The Abyssal Hole screens humans more strictly, and the Anchoring Coefficient required is greater as well."
"You can understand this process of changing from outside the Abyss to within it as a lifeform accepting an external object... much like digestion. A piece of meat is swallowed, broken down by the stomach and intestines into various nutrients, then absorbed by the lifeform. Only then does that pure external object become useful material for the Abyss."
"To achieve anchoring, we must remain on the fourth layer for a while, until the Abyss accepts us..."
The Little Sprite explained this earnestly to Lu Youqi.
After hearing it all, Lu Youqi thought for a while before asking, "How long will that take?"