How did the medieval man’s idea of the world around him and its structure differ from modern ideas?

Modern man owns a variety of technologies and gadgets, but especially nothing has changed inside him since the emergence of the Abrahamic religions and ancient beliefs. A few facts:

With the emergence of anthropocentrism and religions in which the person-prophet, the person-messiah, through which the “divine” is embodied on Earth, nothing has changed. The role of the church in society has changed. If earlier it was possible to convince people that the Earth is flat, now it is almost impossible. The church in all developed states is separated from the state.

Until the beginning of scientific research, which began to take place towards the end of the Middle Ages, intimidated and superstitious people could be convinced of anything.

Why does the church often appear here? Because by faith in God, one church sent people to the slaughter and motivated this by the salvation of the Holy Sepulcher and the war against the Gentiles, and the other side, which believed in God and honored Isa’s son Mary, did the same disgusting deeds.