We are born into an unknown world. Slowly we learn as we go. Taught by those who came before. Who in turn we're taught by those who came before. Generation after generation passing knowledge forward.
Knowledge differed region by region. Belief systems differed region by region.
The common link in all this? The knowledge passed had its roots in beliefs of ancient people, people who we're gripped by fear. Fear of the world they were born into. Fear of the unknown Fear of death.
Today we still fear the unknown. We still fear death.
Until we conquer our fears, we can not move forward. If we can not move forward, we'll be devoured by our future.