
In the middle age, god was so importance to the peolple in that time because they had a huge interest of know abuot god, to learn about it and also understand what god want to say. They explained that god is everywhere, not phisically, but spiritually, and if you are in the team of god, you will reach go to heaven, etc; but they can't explain the existence of god.
The church realizes a very important and influential roll in the society and in politics and they use gods image to influence and convince people. Also the church will stablished a way to communicate, this exists in the context of relationship with god, where the believer and god will have a spiritual contact.
That’s way is so important to learn from god to understand, because humans and people on that age specifically try to understand the best thing to be like that to have it as a model to inspire. and I think they contacted god the way the church told them to contact him.