What are the characteristics of religious sculptures in Roman churches?

Although in Romanesque art, sculpture and painting were subordinate to architecture, during the period from 1 1 century to12nd century, the religious sculpture of the church also made great progress. Although its main task is to deify people's thoughts into concrete visual images, it also teaches believers without cultural knowledge about agricultural solar terms, astronomy, meteorology, commerce and textiles with the help of large and small carvings on the gates and lintels, just like an illustrated encyclopedia for the poor. This simple natural science popularization education is like a ray of natural light flying in a dark imprisoned world.