It was Ye Xiaochuan who used the power of all living things to fuse their four distinct elemental conscious lives together, which resulted in the current Sword Spirit.
Hearing this, Li Feng understood immediately. In the universe, there are 3,000 Great Daos and 36,000 Minor Daos, each representing a law of nature. Beyond these laws, various elemental attributes exist within the universe—such as gold, wood, water, fire, earth, wind, lightning, and time. Over vast spans of time, each elemental energy can give birth to conscious life, known as an "Elemental Essence."
The Red Refinement and Ice Swords in Hua Wuyou’s possession contain the Essence of Ice and the Essence of Fire. Ye Xiaochuan was truly worthy of being the savior of the Three Realms; such elemental essences appear perhaps once in ten thousand years, yet he had managed to collect so many.
Chapter 222