Answer:
The fear of not getting enough resources to survive
Explanation:
The Neolithic revolution marked a huge transition in humans' method of survival. Changing from hunter-gatherer society into an agricultural society.
But, since the knowledge that humans possess about the environment was very little, most of civilizations correlated the success and failure of each harvest to a higher being.
This is why Religion started to advanced during this time period.
Because of this perception, humans started to made an effort to try to communicate and please what they thought to be a higher being. For example, They do this by giving prayers, some of them providing human sacrifices in the hope that they'll get a rain for their harvest, etc.
