This explains the Western obsession with getting off the floor. In Japan, they believe the floor is clean. So, they leave their shoes at the door. They sleep on mats. It's okay to eat something that accidentally touches it.
Different beliefs produce different values and behaviour.
What you think is true will decide what you think is right or good, and what you do. World view is all about the ultimate questions of reality. Our world view is a series of unstated assumptions. It's something we are rarely aware of, until it comes into contact with another world view. Every culture assumes specific answers to these kind of questions.