Watching Noctis, the Primordial of Screaming Void, come to life was a learning experience because Eos could see that Noctis had no choice but to come to life, because before his mind was awake, his body had almost been brought to completion.
The process of resurrection for a Primordial was resource-intensive, but for Eos, it was only a slight loss of power before his regeneration took care of everything. However, Eos had come to realize that this was not all the cost associated with resurrecting a Primordial; the true bearer of this weight came from his soul.
After killing Noctis a couple of times, Eos had not noticed that his soul had lost a small part due to the pressure of the situation, and because he had unleashed powers that harmed his soul when he was fighting with the Abomination.
