Xiantian!
When a Meridian Opening Realm martial artist brought his blood and qi, True Qi, and even mental state to their peak, he could touch his own life origin, draw it forth, and merge it with his blood and qi, True Qi, and even his mind to nourish himself, allowing his body to develop a second time toward its most perfect state.
The time it took...
As little as ten days to half a month.
Or as long as two or three months.
But life origin was the foundation that sustained human life. If anything went wrong, the milder outcome was a severe loss of vitality and rapid aging.
The worse outcome was the collapse of one's life force, exhausting one's lifespan and dying on the spot.
The reason Li Xian dared to stay up all night breaking through to Xiantian was that, in his understanding, Xiantian was actually a reshaping of the body's memory!
It made the body forget its previous deficiencies, then used life origin to repair flaws, undergo a second development, and memorize its current physiological functions, thereby keeping it at its peak at all times.
He did not need life origin to imprint his peak physiological functions through a second development and maintain perfection.
With One Proof, Eternal Proof, he was always in his current strongest state.
Therefore...
"Life origin. A second development."
He could absolutely use the process of "Returning to the Pre-Heavenly State" to strengthen himself and awaken a Special Physique.
"Special Physiques may differ in quality, but what matters most is how deeply the cultivator explores their traits. The ten supreme Dao physiques are called supreme not because their constitutions are special, but because the cultivators themselves were powerful. With their Special Physiques, they accomplished unprecedented, world-shaking feats. That was what earned their