As the breath of the infected person gradually disappeared, a stream of heat flowed back into Sun Hang's body along those hyphae, quickly restoring Sun Hang's condition—although Sun Hang didn't feel any new abilities, the upper limit of the "blue bar" seemed to grow slightly.
This feeling is very mysterious. It is hard to describe clearly in words, as if Sun Hang's consciousness expanded slightly, unlocking a part of the area that was previously unreachable.
In the grand scheme of consciousness, this bit of expansion can only be considered a "mosquito's leg," but nonetheless, it is a genuine enhancement.
This gave Sun Hang the feeling of playing an RPG game—devoured weird things would turn into his experience points, and when they accumulate to a certain extent, quantitative changes naturally produce qualitative changes.
In gaming terms, that's called a "level up."