Chapter 14 <— click here to read it
Pill Alchemy concept
Neidan, or internal alchemy, is a Taoist spiritual and physical discipline aimed at extending life and cultivating an enduring spiritual body. Also known as Jindan (“golden elixir”), the objective of this cultivation is to enhance overall well-being and ultimately re-establish a connection with the fundamental unity of the Tao, thereby achieving Taoist immortality.
The term “neidan” translates to “inner elixir/alchemy,” distinguishing it from waidan (external alchemy).
What sets Neidan apart from other traditional Chinese wellness practices is its distinct focus on transforming internal energies to realize an “elixir” that embodies the original state of existence.
Source: Wikipedia I’m simply summarizing what Wikipedia says.
This seems to be the basic concept behind making pills or elixirs in Xianxia/cultivation novels.
Thanks for reading! Have a great day!
~Reika