Finally, it is the Soul of Civilization.
This is the trace of existence formed by a civilization in the river of time.
When a civilization is devoured by the Monument Forest, its history, culture, art, philosophy... and the life trajectories of countless individuals will be compressed into a special "Rule Spirit Essence."
This essence possesses the trait of self-continuation; even though the civilization has perished, its soul core will continue to evolve within a warrior's body.
To put it simply, a perished civilization will continue to evolve within the Civilization Warrior.
For instance, when a Civilization Warrior is born, the initial weapon in their hand is a Stone Axe from the stone age.
