Why is the 17th century called a transitional time?

The seventeenth century is called the transitional century, since the course of the Reformation began in Europe, the secularization of culture. At the turn of the 17-18 centuries, there was a transition from the Middle Ages to the New Age. This was due to the invention of the steam engine, new scientific developments, cultural innovations. At this time, Western civilization entered the stage of enlightenment. The boundaries between church life were gradually erased. Religion was relegated to the background, doctrines were popularized that elevated human personality as something unique.