Shared beliefs and values have always helped us make sense of the world around us.
When we were cavemen we formed tribes based on shared interests, essentially to help us navigate the world and survive.
Our tribes existed to serve a practical purpose, to keep order we established ways to live; values that we shared with our group to live as harmoniously as possible.
We began to understand more about the world and evolved our thinking. We developed idols and systems of belief. We kept order through religious doctrine, bringing people together through worship of shared gods or idols, using our beliefs to find community and organise our lives.