The Three Corpses are the great tribulation of becoming an Immortal, the true demon of the Great Dao.
After Zhang Fan merged with the Divine, he became the Three Corpses Calamity. His Primordial Spirit turned extremely peculiar, forged into the Divine Demon Holy Embryo, sealed the Three Corpses Illuminating Fate, and through the integration of both techniques, he realized some mysteries.
If thoughts are the beginning tribulation of cultivation, then the Three Corpses are the final tribulation.
The Primordial Spirit is clear, life becomes void, and ultimately it's hard to achieve even a tenth of completion.
Moreover, between beginning and end, the Primordial Spirit has many disasters, inverting Yin and Yang, disrupting cultivation, leading to a place of no return from myriad tribulations, with no chance of advancing to Immortality.
These myriad disasters, hidden between beginning and end, born of the Primordial Spirit, are the demon.
The demon of the Divine Demon.
