"The Spirit Dragon represents the law of the development of things, or rather, it's a sort of ironclad rule. Going back to ancient times is to comprehend this ironclad rule, thereby transforming into a Spirit Dragon."
In the Tri-Dragon Sacrifice Method, the Dragon Knights and Grand Scholars of the Pyro Lykin Kingdom had studied for hundreds of years and concluded, "The ironclad rule of the Spirit Dragon will guide the future of the Dragon Sleep Continent, restoring the prosperity of the Dragon Spirit Forest Sea."
The method for becoming a Spirit Dragon lies in the hope that the dragons return to ancient times.
Gathering three parts of hope would allow a dragon to touch the verge of the ironclad rule, thereby comprehending the rule and completing the ascension to a Spirit Dragon.