Iconodulism is a fancy word that means liking or supporting pictures of holy people, like Jesus, Mary, or other saints. Some people believe that these pictures help remind them of their faith and make them feel closer to God. This is called "iconodulism."
A long time ago, in some parts of the world, there were other people who didn't like these pictures. They thought that having a picture of a holy person was like worshiping the picture instead of the real holy person. These people were called "iconoclasts," which means "image breakers."
Iconoclasts thought that these pictures were distracting people from their faith and causing them to pay more attention to the pictures than to God. Some of them even destroyed these pictures and other religious artifacts.
But, over time, people who supported these pictures (iconodules) fought back against the iconoclasts. They believed that these pictures were an important part of their religion and shouldn't be destroyed. They argued that these pictures were just reminders of their faith and helped them feel closer to God.
Eventually, in most places, the iconodules won this argument, and the pictures of holy people became an accepted and beloved part of religious practice.