Blood Transformation, Heavenly Passage, Spirit Transformation, and Engravement. These four realms were everything for many creatures because even if they spent their entire lives pursuing these realms, it would still be difficult for them to break through!
This was like four great mountains, each higher than the last. The further one went, the more difficult the path became. It was like a small path carved into a cliff, and it was more difficult than reaching the blue sky.
This was especially true for the human race. Cultivation was extremely difficult. If not for the ancient pathfinders who imitated other races' primitive symbols, they might not even have their current path.
It was clear that this path was full of dangers. It was constructed from blood and sweat, and as generations passed, it eventually became wider and wider.