Zhou Jing had a plan for the development of the Eternal Apostles.
In his opinion, there were two main targets for the Eternal Apostle upon placement in the astral world.
One was naturally to continue to develop, constantly increase the upper limit of his strength, learn new skills, and provide his main body with a richer inventory of abilities.
The other was to earn resources, such as achievements, Astral Points, and Information State Particles.
This was because the Eternal Apostle did not have any pressure to complete the level, nor did they have a life objective to guide them. He could only use his initiative to determine what sort of "career" the Apostle could perform.