Priestly undergarments are special clothes that some religious leaders wear under their outer clothes during worship services. They are often made of white linen fabric and have special meanings for different religious groups. They can include a shirt, pants, belt, and sometimes a special apron called an ephod. These undergarments are meant to be a symbol of purity and humility, and to remind the priests that they are serving a higher power. Some people believe that wearing priestly undergarments helps priests to feel closer to their god, and to better understand their role as spiritual leaders.