Initially, their eyes held light.
But that light has gradually faded.
As if they had become inhuman machines.
This is the price of Divine Power.
The world of mankind needs the power of the Sacred High Priestess to maintain order, but the price is that they must sacrifice their own lives, cutting away all emotions that belong to humans.
There's more.
Those followers of the Akasha Holy Church who swear to devote themselves to humanity must also give up their most precious emotions during the process of replenishing the High Priests with Divine Power.
They labor through the night, poring over ancient texts.
Attempting to communicate with the Divine Tree.
This is why.
Some followers manage to stand out in this process.
Earning the qualification to become the Sacred High Priestess.
But many more lose all emotion in the process, and ultimately transition from being flesh-and-blood humans to unfeeling machines.