The End of the World: a Mortal's Record of Survival

Miasma distorts the medicinal properties of heaven and earth, and the vegetation itself hides the laws of imbalance between heaven and earth. The protagonist polishes the whole process of identifying, picking, matching, and preparing herbs. The essence is to force himself to calm down and observe nuances, deduce cause and effect, predict risks, and tolerate mistakes. It corresponds to the five-level mental enlightenment ladder. Follow the plot throughout the process, step by step, without metaphysics, and your brain will become stronger with purely realistic logic.