What was a significant underlying cause of the shift towards modern rationality during the Protestant Reformation?

A significant underlying cause of the shift towards modern rationality during the Protestant Reformation was the emphasis on individual interpretation of the Bible. Before the Reformation, people largely relied on the Church's teachings and traditions, which meant that a small group of clergy held most of the knowledge and power. Reformers like Martin Luther encouraged individuals to read and understand the scriptures for themselves, promoting the idea that personal reasoning and faith were important. This shift allowed people to question established beliefs and think critically about their faith and the world around them. For example, when Luther translated the Bible into German, it made the text accessible to ordinary people, inspiring them to seek their own understanding rather than just accepting what they were told.