Corporeal Core Formation is an exceedingly rare and extraordinary stage in cultivation, often necessitating the profound insights gleaned from the First Codex of the Undying Live Forever Technique, particularly its initial volumes. Similar to the condensation of a Golden Core in spiritual cultivation, Corporeal Core Formation represents a pinnacle of physical and spiritual advancement. It requires the physical body to achieve an unparalleled level of durability and resilience, breaking through the shackles of mortality to transcend into a higher realm. Commanding mastery over both body and spirit, cultivators who achieve Corporeal Core Formation embody the epitome of strength and enlightenment within the cultivation world.
[Similar to how the accumulation of cultivation can result in realm breakthroughs and the condensation of a Golden Core, when the strength of flesh and bones reaches a certain level of toughness, it can also shatter the shackles of life, break into the next realm and form a corporeal Golden Core]