The most crucial reason lies in the concretization and activation of various origin powers such as Elemental Power, Spiritual Power, Power of Time, and Spatial Power.
These powers have become active to an observable degree and have been integrated into the survival and iterations of all creatures.
When these concrete, active origin powers are concentrated and strengthened to a certain level, souls dependent on these powers for existence are also born.
This means that not all intelligent beings possess complete souls.
The souls of the vast majority of intelligent beings are closely connected with the body, unable to be separated.
Once the body fluctuates, the soul is also greatly affected.
This is why when most intelligent beings die, only a few remnants of the soul appear, rather than a complete conscious soul.
Only when intelligent beings reach at least Advanced Level on the professional path can they genuinely give birth to a soul.
