With the previous experience of cultivating his First Dao Body, and his currently powerful Primordial Spirit World, Wei Cheng didn't think re-cultivating his First Dao Body would be hard.
But he didn't do so immediately.
Instead, he followed Chu Shan's suggestion and prepared to cultivate his Lifeline Immortal World, Life Immortal Soldier, and refine his Immortal Body simultaneously.
When the three resonate and progress together, it's the safest and sturdiest approach.
In this regard, Chu Shan was his guiding light.
However, before doing this, he still needed to establish the rudiments of his Life Immortal Soldier.
Any immortal artifact could be cultivated into a Life Immortal Soldier, but once chosen, it could not be changed.