...
After Izroth mentioned his lack of inventory space, while Astratis never heard of an "inventory", he could guess its functions based on Izroth's words alone. And, the Ancient Celestial Realm had something similar.
"The Call to the Void is a relic given to each celestial after they receive their title. Although you are not from our world, it is clear that ethos now flows through your body. That makes you one of us. And, based on your feats at the Fourth Heart of the World, it is only a matter of time before you receive your title. So, you can just think of it as an early gift." Astratis explained.
Izroth looked down at the palm of his hand at the metallic spherical object that was the size of a plum. He could sense faint traces of ethos flowing throughout the sphere and when he concentrated on that object, he felt as though his consciousness was being pulled into it.
(Unedited)