This is a world where cultivating mystic energy is the central pursuit. Mystic energy is the world's defining force.
Those without mystic energy are doomed to live at the very bottom of the continent.
Rank system: Mystic Apprentice, Mystic Practitioner, Mystic Warrior, Mystic Master, Great Mystic Master, Mystic Sea, Mystic Bone, Mystic Overlord, Mystic Lord, Mystic Essence, Mystic Void, Mystic Spirit, Mystic Nether, Mystic Transformation, Mystic Sect, Mystic King, Mystic Emperor, Mystic God, Mystic Saint, Mystic Venerable.
Cultivation arts: Sun, Moon, Star, Dust. Each stage has nine grades, with Grade One the lowest and Grade Nine the highest.
Mystic artifacts: Heaven, Earth, Mystic, Yellow. Each rank has nine tiers, with Tier One the lowest and Tier Nine the highest.
The protagonist isn't an idealized hero. His actions are excessively extreme, immature, and contradictory. If that bothers you, please don't read.
Regarding the explanation of the light in the previous chapters
This was the secret treasure that person was referring to.