Even though Nial was trying his utmost to understand the current situation as well as possible, it was pretty hard for him.
The Godly Spirit was likely to be part of an actual God, someone who was in possession of a Divinity and Divine energy. That God possessed some sort of power that was directly related to his Eyes. This was also why Nial didn't die, after all, his eyes were incapable of seeing something.
The God spoke about his eyes quite a lot but that was not the most important part since he survived his encounter with a God or a Spirit of a God. That was quite an achievement, something worth being happy about.
'I wonder what he had planned to do with the ancient civilization…calling them useless, but still wanting to kill me because I annihilated them. Feels like there was more meaning behind his words and I understood only parts of it.' Nial thought a little ruefully.