Okay, so have you ever heard of a religion called Mandaeanism? It's a religion that is practiced by a group of people called Mandaeans, and they have leaders in their religion called priests.
The Mandaean priests are people who have been chosen by their community to be leaders and teachers of their religion. They are kind of like teachers at school, but instead of teaching math or science, they teach about the Mandaean religion.
Priests play a really important role in Mandaeanism. They lead religious ceremonies and rituals, like baptisms (which is when someone gets washed in holy water as a sign of becoming part of the Mandaean religion). They also help people in their community with any problems they might be having, like if they're sick or if they need advice.
In order to become a Mandaean priest, someone needs to study and learn a lot about the religion. They need to know all about the Mandaean holy books and be able to recite them by heart. They also need to learn how to lead religious ceremonies and perform important rituals.
It's a really big responsibility to be a Mandaean priest, but it's also a really important job. They help their community stay connected to their religion and traditions, and they are often seen as very respected and wise people.