Only after ascending did Xu Changfeng realize the truth: ascension was a scam, and the mortal world was a farm where the spirit world raised its livestock.
The rulers of the spirit world, the Nine Heavens Immortal Court, had discovered that everyone who ascended from the lower realm carried a thread of Heaven's Mandate. It was premium nourishment for refining Dao fruits and extending the lives of immortals.
Xu Changfeng fought back against the reapers and seized a Reincarnation Dao Seed, making him wanted throughout the spirit world.
Surrounded by powerful figures from every corner of the spirit world, Xu Changfeng chose to sacrifice his own Dao body to tear open the barrier between realms. His remnant soul, wrapped around the System and the Reincarnation Dao Seed, fell back into the mortal world.
At the last moment of his life, his remnant soul, the auxiliary cultivation System that came with his transmigration, and the Reincarnation Dao Seed fused into one, becoming the Ancestral Shrine.
