They're nature worshippers, maybe some natural phenomenon they know about (giant meteor, planetary alignment) that they need to do something by to appease their demonic overlords.
Maybe they have some GMO anti-christ waiting in the wings and have to have things ready for him to take control by a certain time.
They're nature worshippers, maybe some natural phenomenon they know about (giant meteor, planetary alignment) that they need to do something by to appease their demonic overlords.
Maybe they have some GMO anti-christ waiting in the wings and have to have things ready for him to take control by a certain time.